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Finding the Fourth Proportional to 331,347.60, 497,104.20 and 106,729.20

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Solution

The fourth proportional to 331,347.60, 497,104.20 and 106,729.20 is: 160,120.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,347.60 : 497,104.20 = 106,729.20 : x
  2. Step 2: Convert to fraction form
    331,347.60/497,104.20 = 106,729.20/x
  3. Step 3: Cross multiply
    331,347.60x = 497,104.20 × 106,729.20
  4. Step 4: Simplify right side
    331,347.60x = 53,055,533,582.64
  5. Step 5: Solve for x
    x = 53,055,533,582.64/331,347.60
  6. Step 6: Final answer
    x = 160,120.47

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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.