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Finding the Fourth Proportional to 144,023.20, 216,034.80 and 132,618.40

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Solution

The fourth proportional to 144,023.20, 216,034.80 and 132,618.40 is: 198,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,023.20 : 216,034.80 = 132,618.40 : x
  2. Step 2: Convert to fraction form
    144,023.20/216,034.80 = 132,618.40/x
  3. Step 3: Cross multiply
    144,023.20x = 216,034.80 × 132,618.40
  4. Step 4: Simplify right side
    144,023.20x = 28,650,189,520.32
  5. Step 5: Solve for x
    x = 28,650,189,520.32/144,023.20
  6. Step 6: Final answer
    x = 198,927.60

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1.5x scale

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.