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Finding the Fourth Proportional to 112,934.60, 169,401.90 and 101,659.40

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Solution

The fourth proportional to 112,934.60, 169,401.90 and 101,659.40 is: 152,489.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,934.60 : 169,401.90 = 101,659.40 : x
  2. Step 2: Convert to fraction form
    112,934.60/169,401.90 = 101,659.40/x
  3. Step 3: Cross multiply
    112,934.60x = 169,401.90 × 101,659.40
  4. Step 4: Simplify right side
    112,934.60x = 17,221,295,512.86
  5. Step 5: Solve for x
    x = 17,221,295,512.86/112,934.60
  6. Step 6: Final answer
    x = 152,489.10

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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.