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Finding the Fourth Proportional to 424,033.89, 636,045.54 and 124,503.66

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Solution

The fourth proportional to 424,033.89, 636,045.54 and 124,503.66 is: 186,753.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,033.89 : 636,045.54 = 124,503.66 : x
  2. Step 2: Convert to fraction form
    424,033.89/636,045.54 = 124,503.66/x
  3. Step 3: Cross multiply
    424,033.89x = 636,045.54 × 124,503.66
  4. Step 4: Simplify right side
    424,033.89x = 79,189,997,656.68
  5. Step 5: Solve for x
    x = 79,189,997,656.68/424,033.89
  6. Step 6: Final answer
    x = 186,753.94

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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.