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Finding the Fourth Proportional to 252,023.60, 378,035.40 and 168,042.80

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Solution

The fourth proportional to 252,023.60, 378,035.40 and 168,042.80 is: 252,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,023.60 : 378,035.40 = 168,042.80 : x
  2. Step 2: Convert to fraction form
    252,023.60/378,035.40 = 168,042.80/x
  3. Step 3: Cross multiply
    252,023.60x = 378,035.40 × 168,042.80
  4. Step 4: Simplify right side
    252,023.60x = 63,526,127,115.12
  5. Step 5: Solve for x
    x = 63,526,127,115.12/252,023.60
  6. Step 6: Final answer
    x = 252,064.20

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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.