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Finding the Fourth Proportional to 424,484.64, 636,507.84 and 124,926.36

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Solution

The fourth proportional to 424,484.64, 636,507.84 and 124,926.36 is: 187,325.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,484.64 : 636,507.84 = 124,926.36 : x
  2. Step 2: Convert to fraction form
    424,484.64/636,507.84 = 124,926.36/x
  3. Step 3: Cross multiply
    424,484.64x = 636,507.84 × 124,926.36
  4. Step 4: Simplify right side
    424,484.64x = 79,516,607,562.66
  5. Step 5: Solve for x
    x = 79,516,607,562.66/424,484.64
  6. Step 6: Final answer
    x = 187,325.05

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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.