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Finding the Fourth Proportional to 170,645.60, 255,622.80 and 96,687.20

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Solution

The fourth proportional to 170,645.60, 255,622.80 and 96,687.20 is: 144,834.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,645.60 : 255,622.80 = 96,687.20 : x
  2. Step 2: Convert to fraction form
    170,645.60/255,622.80 = 96,687.20/x
  3. Step 3: Cross multiply
    170,645.60x = 255,622.80 × 96,687.20
  4. Step 4: Simplify right side
    170,645.60x = 24,715,452,788.16
  5. Step 5: Solve for x
    x = 24,715,452,788.16/170,645.60
  6. Step 6: Final answer
    x = 144,834.98

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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.