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Finding the Fourth Proportional to 181,285.95, 250,174.88 and 100,711.41

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Solution

The fourth proportional to 181,285.95, 250,174.88 and 100,711.41 is: 138,981.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,285.95 : 250,174.88 = 100,711.41 : x
  2. Step 2: Convert to fraction form
    181,285.95/250,174.88 = 100,711.41/x
  3. Step 3: Cross multiply
    181,285.95x = 250,174.88 × 100,711.41
  4. Step 4: Simplify right side
    181,285.95x = 25,195,464,911.38
  5. Step 5: Solve for x
    x = 25,195,464,911.38/181,285.95
  6. Step 6: Final answer
    x = 138,981.90

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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.