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Finding the Fourth Proportional to 139,599.74, 209,320.04 and 95,280.14

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Solution

The fourth proportional to 139,599.74, 209,320.04 and 95,280.14 is: 142,865.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,599.74 : 209,320.04 = 95,280.14 : x
  2. Step 2: Convert to fraction form
    139,599.74/209,320.04 = 95,280.14/x
  3. Step 3: Cross multiply
    139,599.74x = 209,320.04 × 95,280.14
  4. Step 4: Simplify right side
    139,599.74x = 19,944,042,716.01
  5. Step 5: Solve for x
    x = 19,944,042,716.01/139,599.74
  6. Step 6: Final answer
    x = 142,865.90

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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.