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Finding the Fourth Proportional to 424,461.66, 636,473.38 and 124,903.30

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Solution

The fourth proportional to 424,461.66, 636,473.38 and 124,903.30 is: 187,290.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,461.66 : 636,473.38 = 124,903.30 : x
  2. Step 2: Convert to fraction form
    424,461.66/636,473.38 = 124,903.30/x
  3. Step 3: Cross multiply
    424,461.66x = 636,473.38 × 124,903.30
  4. Step 4: Simplify right side
    424,461.66x = 79,497,625,524.15
  5. Step 5: Solve for x
    x = 79,497,625,524.15/424,461.66
  6. Step 6: Final answer
    x = 187,290.47

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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.