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Finding the Fourth Proportional to 292,472.61, 438,724.49 and 92,808.61

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Solution

The fourth proportional to 292,472.61, 438,724.49 and 92,808.61 is: 139,217.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,472.61 : 438,724.49 = 92,808.61 : x
  2. Step 2: Convert to fraction form
    292,472.61/438,724.49 = 92,808.61/x
  3. Step 3: Cross multiply
    292,472.61x = 438,724.49 × 92,808.61
  4. Step 4: Simplify right side
    292,472.61x = 40,717,410,089.86
  5. Step 5: Solve for x
    x = 40,717,410,089.86/292,472.61
  6. Step 6: Final answer
    x = 139,217.86

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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.