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Finding the Fourth Proportional to 176,545.63, 243,627.85 and 100,071.78

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Solution

The fourth proportional to 176,545.63, 243,627.85 and 100,071.78 is: 138,096.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,545.63 : 243,627.85 = 100,071.78 : x
  2. Step 2: Convert to fraction form
    176,545.63/243,627.85 = 100,071.78/x
  3. Step 3: Cross multiply
    176,545.63x = 243,627.85 × 100,071.78
  4. Step 4: Simplify right side
    176,545.63x = 24,380,272,607.07
  5. Step 5: Solve for x
    x = 24,380,272,607.07/176,545.63
  6. Step 6: Final answer
    x = 138,096.15

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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.