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Finding the Fourth Proportional to 116,451.59, 160,694.34 and 65,456.21

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Solution

The fourth proportional to 116,451.59, 160,694.34 and 65,456.21 is: 90,324.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,451.59 : 160,694.34 = 65,456.21 : x
  2. Step 2: Convert to fraction form
    116,451.59/160,694.34 = 65,456.21/x
  3. Step 3: Cross multiply
    116,451.59x = 160,694.34 × 65,456.21
  4. Step 4: Simplify right side
    116,451.59x = 10,518,442,621.13
  5. Step 5: Solve for x
    x = 10,518,442,621.13/116,451.59
  6. Step 6: Final answer
    x = 90,324.60

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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.