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Finding the Fourth Proportional to 188,765.46, 260,496.15 and 103,882.53

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Solution

The fourth proportional to 188,765.46, 260,496.15 and 103,882.53 is: 143,357.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,765.46 : 260,496.15 = 103,882.53 : x
  2. Step 2: Convert to fraction form
    188,765.46/260,496.15 = 103,882.53/x
  3. Step 3: Cross multiply
    188,765.46x = 260,496.15 × 103,882.53
  4. Step 4: Simplify right side
    188,765.46x = 27,060,999,117.26
  5. Step 5: Solve for x
    x = 27,060,999,117.26/188,765.46
  6. Step 6: Final answer
    x = 143,357.79

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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.