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Finding the Fourth Proportional to 105,753.60, 158,486.22 and 53,199.18

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Solution

The fourth proportional to 105,753.60, 158,486.22 and 53,199.18 is: 79,726.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,753.60 : 158,486.22 = 53,199.18 : x
  2. Step 2: Convert to fraction form
    105,753.60/158,486.22 = 53,199.18/x
  3. Step 3: Cross multiply
    105,753.60x = 158,486.22 × 53,199.18
  4. Step 4: Simplify right side
    105,753.60x = 8,431,336,945.30
  5. Step 5: Solve for x
    x = 8,431,336,945.30/105,753.60
  6. Step 6: Final answer
    x = 79,726.24

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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.