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Finding the Fourth Proportional to 161,989.66, 223,400.39 and 101,566.90

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Solution

The fourth proportional to 161,989.66, 223,400.39 and 101,566.90 is: 140,071.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,989.66 : 223,400.39 = 101,566.90 : x
  2. Step 2: Convert to fraction form
    161,989.66/223,400.39 = 101,566.90/x
  3. Step 3: Cross multiply
    161,989.66x = 223,400.39 × 101,566.90
  4. Step 4: Simplify right side
    161,989.66x = 22,690,085,071.09
  5. Step 5: Solve for x
    x = 22,690,085,071.09/161,989.66
  6. Step 6: Final answer
    x = 140,071.19

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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.