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Finding the Fourth Proportional to 113,876.64, 157,149.18 and 63,575.64

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Solution

The fourth proportional to 113,876.64, 157,149.18 and 63,575.64 is: 87,734.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,876.64 : 157,149.18 = 63,575.64 : x
  2. Step 2: Convert to fraction form
    113,876.64/157,149.18 = 63,575.64/x
  3. Step 3: Cross multiply
    113,876.64x = 157,149.18 × 63,575.64
  4. Step 4: Simplify right side
    113,876.64x = 9,990,859,693.98
  5. Step 5: Solve for x
    x = 9,990,859,693.98/113,876.64
  6. Step 6: Final answer
    x = 87,734.06

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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.