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Finding the Fourth Proportional to 124,164.60, 186,117.30 and 67,918.20

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Solution

The fourth proportional to 124,164.60, 186,117.30 and 67,918.20 is: 101,806.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,164.60 : 186,117.30 = 67,918.20 : x
  2. Step 2: Convert to fraction form
    124,164.60/186,117.30 = 67,918.20/x
  3. Step 3: Cross multiply
    124,164.60x = 186,117.30 × 67,918.20
  4. Step 4: Simplify right side
    124,164.60x = 12,640,752,004.86
  5. Step 5: Solve for x
    x = 12,640,752,004.86/124,164.60
  6. Step 6: Final answer
    x = 101,806.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.