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Finding the Fourth Proportional to 261,219.92, 360,481.80 and 141,987.92

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Solution

The fourth proportional to 261,219.92, 360,481.80 and 141,987.92 is: 195,942.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,219.92 : 360,481.80 = 141,987.92 : x
  2. Step 2: Convert to fraction form
    261,219.92/360,481.80 = 141,987.92/x
  3. Step 3: Cross multiply
    261,219.92x = 360,481.80 × 141,987.92
  4. Step 4: Simplify right side
    261,219.92x = 51,184,060,979.86
  5. Step 5: Solve for x
    x = 51,184,060,979.86/261,219.92
  6. Step 6: Final answer
    x = 195,942.41

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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.