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Finding the Fourth Proportional to 66,039,345.60, 99,059,018.40 and 50,922,801.60

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Solution

The fourth proportional to 66,039,345.60, 99,059,018.40 and 50,922,801.60 is: 76,384,202.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,039,345.60 : 99,059,018.40 = 50,922,801.60 : x
  2. Step 2: Convert to fraction form
    66,039,345.60/99,059,018.40 = 50,922,801.60/x
  3. Step 3: Cross multiply
    66,039,345.60x = 99,059,018.40 × 50,922,801.60
  4. Step 4: Simplify right side
    66,039,345.60x = 5,044,362,740,673,950
  5. Step 5: Solve for x
    x = 5,044,362,740,673,950/66,039,345.60
  6. Step 6: Final answer
    x = 76,384,202.40

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.