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Finding the Fourth Proportional to 147,282.76, 220,718.19 and 79,668.83

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Solution

The fourth proportional to 147,282.76, 220,718.19 and 79,668.83 is: 119,391.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,282.76 : 220,718.19 = 79,668.83 : x
  2. Step 2: Convert to fraction form
    147,282.76/220,718.19 = 79,668.83/x
  3. Step 3: Cross multiply
    147,282.76x = 220,718.19 × 79,668.83
  4. Step 4: Simplify right side
    147,282.76x = 17,584,359,957.02
  5. Step 5: Solve for x
    x = 17,584,359,957.02/147,282.76
  6. Step 6: Final answer
    x = 119,391.84

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1.5x scale

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.