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Finding the Fourth Proportional to 160,929.78, 222,079.17 and 89,308.74

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Solution

The fourth proportional to 160,929.78, 222,079.17 and 89,308.74 is: 123,243.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,929.78 : 222,079.17 = 89,308.74 : x
  2. Step 2: Convert to fraction form
    160,929.78/222,079.17 = 89,308.74/x
  3. Step 3: Cross multiply
    160,929.78x = 222,079.17 × 89,308.74
  4. Step 4: Simplify right side
    160,929.78x = 19,833,610,852.95
  5. Step 5: Solve for x
    x = 19,833,610,852.95/160,929.78
  6. Step 6: Final answer
    x = 123,243.88

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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.