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Finding the Fourth Proportional to 176,760.76, 243,946.08 and 100,304.80

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Solution

The fourth proportional to 176,760.76, 243,946.08 and 100,304.80 is: 138,429.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,760.76 : 243,946.08 = 100,304.80 : x
  2. Step 2: Convert to fraction form
    176,760.76/243,946.08 = 100,304.80/x
  3. Step 3: Cross multiply
    176,760.76x = 243,946.08 × 100,304.80
  4. Step 4: Simplify right side
    176,760.76x = 24,468,962,765.18
  5. Step 5: Solve for x
    x = 24,468,962,765.18/176,760.76
  6. Step 6: Final answer
    x = 138,429.83

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1.5x scale

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.