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Finding the Fourth Proportional to 176,609.16, 243,658.80 and 100,117.08

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Solution

The fourth proportional to 176,609.16, 243,658.80 and 100,117.08 is: 138,126.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,609.16 : 243,658.80 = 100,117.08 : x
  2. Step 2: Convert to fraction form
    176,609.16/243,658.80 = 100,117.08/x
  3. Step 3: Cross multiply
    176,609.16x = 243,658.80 × 100,117.08
  4. Step 4: Simplify right side
    176,609.16x = 24,394,407,572.30
  5. Step 5: Solve for x
    x = 24,394,407,572.30/176,609.16
  6. Step 6: Final answer
    x = 138,126.51

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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.