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Finding the Fourth Proportional to 92,175.64, 138,337.28 and 42,279.24

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Solution

The fourth proportional to 92,175.64, 138,337.28 and 42,279.24 is: 63,452.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,175.64 : 138,337.28 = 42,279.24 : x
  2. Step 2: Convert to fraction form
    92,175.64/138,337.28 = 42,279.24/x
  3. Step 3: Cross multiply
    92,175.64x = 138,337.28 × 42,279.24
  4. Step 4: Simplify right side
    92,175.64x = 5,848,795,062.07
  5. Step 5: Solve for x
    x = 5,848,795,062.07/92,175.64
  6. Step 6: Final answer
    x = 63,452.72

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1.5x scale

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.