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Finding the Fourth Proportional to 66,117.60, 99,273.60 and 46,483.20

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Solution

The fourth proportional to 66,117.60, 99,273.60 and 46,483.20 is: 69,793.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,117.60 : 99,273.60 = 46,483.20 : x
  2. Step 2: Convert to fraction form
    66,117.60/99,273.60 = 46,483.20/x
  3. Step 3: Cross multiply
    66,117.60x = 99,273.60 × 46,483.20
  4. Step 4: Simplify right side
    66,117.60x = 4,614,554,603.52
  5. Step 5: Solve for x
    x = 4,614,554,603.52/66,117.60
  6. Step 6: Final answer
    x = 69,793.14

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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.