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Finding the Fourth Proportional to 157,414.80, 236,122.20 and 63,987.60

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Solution

The fourth proportional to 157,414.80, 236,122.20 and 63,987.60 is: 95,981.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,414.80 : 236,122.20 = 63,987.60 : x
  2. Step 2: Convert to fraction form
    157,414.80/236,122.20 = 63,987.60/x
  3. Step 3: Cross multiply
    157,414.80x = 236,122.20 × 63,987.60
  4. Step 4: Simplify right side
    157,414.80x = 15,108,892,884.72
  5. Step 5: Solve for x
    x = 15,108,892,884.72/157,414.80
  6. Step 6: Final answer
    x = 95,981.40

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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.