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Finding the Fourth Proportional to 424,807.42, 637,196.28 and 125,292.64

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Solution

The fourth proportional to 424,807.42, 637,196.28 and 125,292.64 is: 187,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,807.42 : 637,196.28 = 125,292.64 : x
  2. Step 2: Convert to fraction form
    424,807.42/637,196.28 = 125,292.64/x
  3. Step 3: Cross multiply
    424,807.42x = 637,196.28 × 125,292.64
  4. Step 4: Simplify right side
    424,807.42x = 79,836,004,119.38
  5. Step 5: Solve for x
    x = 79,836,004,119.38/424,807.42
  6. Step 6: Final answer
    x = 187,934.58

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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.