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Finding the Fourth Proportional to 260,116.48, 358,961.28 and 140,884.48

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Solution

The fourth proportional to 260,116.48, 358,961.28 and 140,884.48 is: 194,420.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,116.48 : 358,961.28 = 140,884.48 : x
  2. Step 2: Convert to fraction form
    260,116.48/358,961.28 = 140,884.48/x
  3. Step 3: Cross multiply
    260,116.48x = 358,961.28 × 140,884.48
  4. Step 4: Simplify right side
    260,116.48x = 50,572,073,272.93
  5. Step 5: Solve for x
    x = 50,572,073,272.93/260,116.48
  6. Step 6: Final answer
    x = 194,420.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.