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Finding the Fourth Proportional to 66,434,594.80, 99,651,892.20 and 55,664,057.20

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Solution

The fourth proportional to 66,434,594.80, 99,651,892.20 and 55,664,057.20 is: 83,496,085.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,434,594.80 : 99,651,892.20 = 55,664,057.20 : x
  2. Step 2: Convert to fraction form
    66,434,594.80/99,651,892.20 = 55,664,057.20/x
  3. Step 3: Cross multiply
    66,434,594.80x = 99,651,892.20 × 55,664,057.20
  4. Step 4: Simplify right side
    66,434,594.80x = 5,547,028,627,509,034
  5. Step 5: Solve for x
    x = 5,547,028,627,509,034/66,434,594.80
  6. Step 6: Final answer
    x = 83,496,085.80

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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.