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Finding the Fourth Proportional to 116,600.70, 160,909.65 and 65,614.28

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Solution

The fourth proportional to 116,600.70, 160,909.65 and 65,614.28 is: 90,548.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,600.70 : 160,909.65 = 65,614.28 : x
  2. Step 2: Convert to fraction form
    116,600.70/160,909.65 = 65,614.28/x
  3. Step 3: Cross multiply
    116,600.70x = 160,909.65 × 65,614.28
  4. Step 4: Simplify right side
    116,600.70x = 10,557,970,025.25
  5. Step 5: Solve for x
    x = 10,557,970,025.25/116,600.70
  6. Step 6: Final answer
    x = 90,548.08

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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.