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Finding the Fourth Proportional to 160,491.66, 221,479.56 and 88,876.32

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Solution

The fourth proportional to 160,491.66, 221,479.56 and 88,876.32 is: 122,649.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,491.66 : 221,479.56 = 88,876.32 : x
  2. Step 2: Convert to fraction form
    160,491.66/221,479.56 = 88,876.32/x
  3. Step 3: Cross multiply
    160,491.66x = 221,479.56 × 88,876.32
  4. Step 4: Simplify right side
    160,491.66x = 19,684,288,248.02
  5. Step 5: Solve for x
    x = 19,684,288,248.02/160,491.66
  6. Step 6: Final answer
    x = 122,649.91

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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.