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Finding the Fourth Proportional to 125,358.66, 188,065.66 and 46,472.88

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Solution

The fourth proportional to 125,358.66, 188,065.66 and 46,472.88 is: 69,719.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,358.66 : 188,065.66 = 46,472.88 : x
  2. Step 2: Convert to fraction form
    125,358.66/188,065.66 = 46,472.88/x
  3. Step 3: Cross multiply
    125,358.66x = 188,065.66 × 46,472.88
  4. Step 4: Simplify right side
    125,358.66x = 8,739,953,458.62
  5. Step 5: Solve for x
    x = 8,739,953,458.62/125,358.66
  6. Step 6: Final answer
    x = 69,719.58

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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.