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Finding the Fourth Proportional to 119,686.80, 179,530.20 and 96,358.80

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Solution

The fourth proportional to 119,686.80, 179,530.20 and 96,358.80 is: 144,538.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,686.80 : 179,530.20 = 96,358.80 : x
  2. Step 2: Convert to fraction form
    119,686.80/179,530.20 = 96,358.80/x
  3. Step 3: Cross multiply
    119,686.80x = 179,530.20 × 96,358.80
  4. Step 4: Simplify right side
    119,686.80x = 17,299,314,635.76
  5. Step 5: Solve for x
    x = 17,299,314,635.76/119,686.80
  6. Step 6: Final answer
    x = 144,538.20

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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.