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Finding the Fourth Proportional to 125,575.76, 188,458.68 and 63,298.64

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Solution

The fourth proportional to 125,575.76, 188,458.68 and 63,298.64 is: 94,995.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,575.76 : 188,458.68 = 63,298.64 : x
  2. Step 2: Convert to fraction form
    125,575.76/188,458.68 = 63,298.64/x
  3. Step 3: Cross multiply
    125,575.76x = 188,458.68 × 63,298.64
  4. Step 4: Simplify right side
    125,575.76x = 11,929,178,140.20
  5. Step 5: Solve for x
    x = 11,929,178,140.20/125,575.76
  6. Step 6: Final answer
    x = 94,995.87

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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.