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Finding the Fourth Proportional to 424,262.58, 636,240.78 and 124,663.02

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Solution

The fourth proportional to 424,262.58, 636,240.78 and 124,663.02 is: 186,949.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,262.58 : 636,240.78 = 124,663.02 : x
  2. Step 2: Convert to fraction form
    424,262.58/636,240.78 = 124,663.02/x
  3. Step 3: Cross multiply
    424,262.58x = 636,240.78 × 124,663.02
  4. Step 4: Simplify right side
    424,262.58x = 79,315,697,081.96
  5. Step 5: Solve for x
    x = 79,315,697,081.96/424,262.58
  6. Step 6: Final answer
    x = 186,949.55

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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.