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Finding the Fourth Proportional to 235,440.80, 353,679.60 and 165,456.80

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Solution

The fourth proportional to 235,440.80, 353,679.60 and 165,456.80 is: 248,549.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,440.80 : 353,679.60 = 165,456.80 : x
  2. Step 2: Convert to fraction form
    235,440.80/353,679.60 = 165,456.80/x
  3. Step 3: Cross multiply
    235,440.80x = 353,679.60 × 165,456.80
  4. Step 4: Simplify right side
    235,440.80x = 58,518,694,841.28
  5. Step 5: Solve for x
    x = 58,518,694,841.28/235,440.80
  6. Step 6: Final answer
    x = 248,549.51

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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.