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Finding the Fourth Proportional to 176,174.54, 243,121.03 and 100,724.62

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Solution

The fourth proportional to 176,174.54, 243,121.03 and 100,724.62 is: 139,000.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,174.54 : 243,121.03 = 100,724.62 : x
  2. Step 2: Convert to fraction form
    176,174.54/243,121.03 = 100,724.62/x
  3. Step 3: Cross multiply
    176,174.54x = 243,121.03 × 100,724.62
  4. Step 4: Simplify right side
    176,174.54x = 24,488,273,360.76
  5. Step 5: Solve for x
    x = 24,488,273,360.76/176,174.54
  6. Step 6: Final answer
    x = 139,000.07

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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.