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Finding the Fourth Proportional to 57,980,314.80, 86,980,969.80 and 29,153,905.20

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Solution

The fourth proportional to 57,980,314.80, 86,980,969.80 and 29,153,905.20 is: 43,736,136.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,980,314.80 : 86,980,969.80 = 29,153,905.20 : x
  2. Step 2: Convert to fraction form
    57,980,314.80/86,980,969.80 = 29,153,905.20/x
  3. Step 3: Cross multiply
    57,980,314.80x = 86,980,969.80 × 29,153,905.20
  4. Step 4: Simplify right side
    57,980,314.80x = 2,535,834,947,753,263
  5. Step 5: Solve for x
    x = 2,535,834,947,753,263/57,980,314.80
  6. Step 6: Final answer
    x = 43,736,136.25

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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.