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Finding the Fourth Proportional to 66,529,149.60, 99,793,724.40 and 65,633,354.40

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Solution

The fourth proportional to 66,529,149.60, 99,793,724.40 and 65,633,354.40 is: 98,450,031.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,529,149.60 : 99,793,724.40 = 65,633,354.40 : x
  2. Step 2: Convert to fraction form
    66,529,149.60/99,793,724.40 = 65,633,354.40/x
  3. Step 3: Cross multiply
    66,529,149.60x = 99,793,724.40 × 65,633,354.40
  4. Step 4: Simplify right side
    66,529,149.60x = 6,549,796,880,441,128
  5. Step 5: Solve for x
    x = 6,549,796,880,441,128/66,529,149.60
  6. Step 6: Final answer
    x = 98,450,031.60

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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.