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Finding the Fourth Proportional to 149,358.71, 206,191.19 and 101,214.97

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Solution

The fourth proportional to 149,358.71, 206,191.19 and 101,214.97 is: 139,728.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,358.71 : 206,191.19 = 101,214.97 : x
  2. Step 2: Convert to fraction form
    149,358.71/206,191.19 = 101,214.97/x
  3. Step 3: Cross multiply
    149,358.71x = 206,191.19 × 101,214.97
  4. Step 4: Simplify right side
    149,358.71x = 20,869,635,110.11
  5. Step 5: Solve for x
    x = 20,869,635,110.11/149,358.71
  6. Step 6: Final answer
    x = 139,728.28

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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.