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Finding the Fourth Proportional to 424,807.74, 637,320.96 and 125,276.22

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Solution

The fourth proportional to 424,807.74, 637,320.96 and 125,276.22 is: 187,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,807.74 : 637,320.96 = 125,276.22 : x
  2. Step 2: Convert to fraction form
    424,807.74/637,320.96 = 125,276.22/x
  3. Step 3: Cross multiply
    424,807.74x = 637,320.96 × 125,276.22
  4. Step 4: Simplify right side
    424,807.74x = 79,841,160,795.57
  5. Step 5: Solve for x
    x = 79,841,160,795.57/424,807.74
  6. Step 6: Final answer
    x = 187,946.58

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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.