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Finding the Fourth Proportional to 363,306.17, 544,962.29 and 126,648.47

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Solution

The fourth proportional to 363,306.17, 544,962.29 and 126,648.47 is: 189,973.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,306.17 : 544,962.29 = 126,648.47 : x
  2. Step 2: Convert to fraction form
    363,306.17/544,962.29 = 126,648.47/x
  3. Step 3: Cross multiply
    363,306.17x = 544,962.29 × 126,648.47
  4. Step 4: Simplify right side
    363,306.17x = 69,018,636,878.14
  5. Step 5: Solve for x
    x = 69,018,636,878.14/363,306.17
  6. Step 6: Final answer
    x = 189,973.76

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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.