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Finding the Fourth Proportional to 250,428.30, 375,691.74 and 92,658.12

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Solution

The fourth proportional to 250,428.30, 375,691.74 and 92,658.12 is: 139,005.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,428.30 : 375,691.74 = 92,658.12 : x
  2. Step 2: Convert to fraction form
    250,428.30/375,691.74 = 92,658.12/x
  3. Step 3: Cross multiply
    250,428.30x = 375,691.74 × 92,658.12
  4. Step 4: Simplify right side
    250,428.30x = 34,810,890,327.93
  5. Step 5: Solve for x
    x = 34,810,890,327.93/250,428.30
  6. Step 6: Final answer
    x = 139,005.42

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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.