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Finding the Fourth Proportional to 91,101.44, 136,739.61 and 44,387.12

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Solution

The fourth proportional to 91,101.44, 136,739.61 and 44,387.12 is: 66,623.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,101.44 : 136,739.61 = 44,387.12 : x
  2. Step 2: Convert to fraction form
    91,101.44/136,739.61 = 44,387.12/x
  3. Step 3: Cross multiply
    91,101.44x = 136,739.61 × 44,387.12
  4. Step 4: Simplify right side
    91,101.44x = 6,069,477,819.67
  5. Step 5: Solve for x
    x = 6,069,477,819.67/91,101.44
  6. Step 6: Final answer
    x = 66,623.29

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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.