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Finding the Fourth Proportional to 113,598.60, 170,397.90 and 38,803.20

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Solution

The fourth proportional to 113,598.60, 170,397.90 and 38,803.20 is: 58,204.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,598.60 : 170,397.90 = 38,803.20 : x
  2. Step 2: Convert to fraction form
    113,598.60/170,397.90 = 38,803.20/x
  3. Step 3: Cross multiply
    113,598.60x = 170,397.90 × 38,803.20
  4. Step 4: Simplify right side
    113,598.60x = 6,611,983,793.28
  5. Step 5: Solve for x
    x = 6,611,983,793.28/113,598.60
  6. Step 6: Final answer
    x = 58,204.80

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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.