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Finding the Fourth Proportional to 176,532, 243,619.56 and 100,049.20

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Solution

The fourth proportional to 176,532, 243,619.56 and 100,049.20 is: 138,070.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,532 : 243,619.56 = 100,049.20 : x
  2. Step 2: Convert to fraction form
    176,532/243,619.56 = 100,049.20/x
  3. Step 3: Cross multiply
    176,532x = 243,619.56 × 100,049.20
  4. Step 4: Simplify right side
    176,532x = 24,373,942,082.35
  5. Step 5: Solve for x
    x = 24,373,942,082.35/176,532
  6. Step 6: Final answer
    x = 138,070.96

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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.