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Finding the Fourth Proportional to 176,645.88, 243,766.08 and 100,171.94

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Solution

The fourth proportional to 176,645.88, 243,766.08 and 100,171.94 is: 138,234.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,645.88 : 243,766.08 = 100,171.94 : x
  2. Step 2: Convert to fraction form
    176,645.88/243,766.08 = 100,171.94/x
  3. Step 3: Cross multiply
    176,645.88x = 243,766.08 × 100,171.94
  4. Step 4: Simplify right side
    176,645.88x = 24,418,519,920.96
  5. Step 5: Solve for x
    x = 24,418,519,920.96/176,645.88
  6. Step 6: Final answer
    x = 138,234.30

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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.