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Finding the Fourth Proportional to 121,594.90, 169,839.20 and 121,594.90

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Solution

The fourth proportional to 121,594.90, 169,839.20 and 121,594.90 is: 169,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,594.90 : 169,839.20 = 121,594.90 : x
  2. Step 2: Convert to fraction form
    121,594.90/169,839.20 = 121,594.90/x
  3. Step 3: Cross multiply
    121,594.90x = 169,839.20 × 121,594.90
  4. Step 4: Simplify right side
    121,594.90x = 20,651,580,540.08
  5. Step 5: Solve for x
    x = 20,651,580,540.08/121,594.90
  6. Step 6: Final answer
    x = 169,839.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.