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Finding the Fourth Proportional to 92,330.85, 127,447.92 and 57,432.81

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Solution

The fourth proportional to 92,330.85, 127,447.92 and 57,432.81 is: 79,276.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,330.85 : 127,447.92 = 57,432.81 : x
  2. Step 2: Convert to fraction form
    92,330.85/127,447.92 = 57,432.81/x
  3. Step 3: Cross multiply
    92,330.85x = 127,447.92 × 57,432.81
  4. Step 4: Simplify right side
    92,330.85x = 7,319,692,174.26
  5. Step 5: Solve for x
    x = 7,319,692,174.26/92,330.85
  6. Step 6: Final answer
    x = 79,276.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.