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Finding the Fourth Proportional to 424,475.84, 636,494.66 and 124,917.53

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Solution

The fourth proportional to 424,475.84, 636,494.66 and 124,917.53 is: 187,311.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,475.84 : 636,494.66 = 124,917.53 : x
  2. Step 2: Convert to fraction form
    424,475.84/636,494.66 = 124,917.53/x
  3. Step 3: Cross multiply
    424,475.84x = 636,494.66 × 124,917.53
  4. Step 4: Simplify right side
    424,475.84x = 79,509,337,446.77
  5. Step 5: Solve for x
    x = 79,509,337,446.77/424,475.84
  6. Step 6: Final answer
    x = 187,311.81

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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.