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Finding the Fourth Proportional to 174,139.44, 261,209.44 and 47,781.40

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Solution

The fourth proportional to 174,139.44, 261,209.44 and 47,781.40 is: 71,672.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,139.44 : 261,209.44 = 47,781.40 : x
  2. Step 2: Convert to fraction form
    174,139.44/261,209.44 = 47,781.40/x
  3. Step 3: Cross multiply
    174,139.44x = 261,209.44 × 47,781.40
  4. Step 4: Simplify right side
    174,139.44x = 12,480,952,736.42
  5. Step 5: Solve for x
    x = 12,480,952,736.42/174,139.44
  6. Step 6: Final answer
    x = 71,672.18

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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.