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Finding the Fourth Proportional to 181,657.90, 272,292.45 and 81,801.10

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Solution

The fourth proportional to 181,657.90, 272,292.45 and 81,801.10 is: 122,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,657.90 : 272,292.45 = 81,801.10 : x
  2. Step 2: Convert to fraction form
    181,657.90/272,292.45 = 81,801.10/x
  3. Step 3: Cross multiply
    181,657.90x = 272,292.45 × 81,801.10
  4. Step 4: Simplify right side
    181,657.90x = 22,273,821,931.70
  5. Step 5: Solve for x
    x = 22,273,821,931.70/181,657.90
  6. Step 6: Final answer
    x = 122,614.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.