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Finding the Fourth Proportional to 292,279.64, 438,432.22 and 92,614.74

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Solution

The fourth proportional to 292,279.64, 438,432.22 and 92,614.74 is: 138,926.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,279.64 : 438,432.22 = 92,614.74 : x
  2. Step 2: Convert to fraction form
    292,279.64/438,432.22 = 92,614.74/x
  3. Step 3: Cross multiply
    292,279.64x = 438,432.22 × 92,614.74
  4. Step 4: Simplify right side
    292,279.64x = 40,605,286,740.27
  5. Step 5: Solve for x
    x = 40,605,286,740.27/292,279.64
  6. Step 6: Final answer
    x = 138,926.16

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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.