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Finding the Fourth Proportional to 92,406.68, 127,520.60 and 52,120.78

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Solution

The fourth proportional to 92,406.68, 127,520.60 and 52,120.78 is: 71,926.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,406.68 : 127,520.60 = 52,120.78 : x
  2. Step 2: Convert to fraction form
    92,406.68/127,520.60 = 52,120.78/x
  3. Step 3: Cross multiply
    92,406.68x = 127,520.60 × 52,120.78
  4. Step 4: Simplify right side
    92,406.68x = 6,646,473,138.07
  5. Step 5: Solve for x
    x = 6,646,473,138.07/92,406.68
  6. Step 6: Final answer
    x = 71,926.33

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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.