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Finding the Fourth Proportional to 109,343.61, 150,867.63 and 61,596.90

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Solution

The fourth proportional to 109,343.61, 150,867.63 and 61,596.90 is: 84,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,343.61 : 150,867.63 = 61,596.90 : x
  2. Step 2: Convert to fraction form
    109,343.61/150,867.63 = 61,596.90/x
  3. Step 3: Cross multiply
    109,343.61x = 150,867.63 × 61,596.90
  4. Step 4: Simplify right side
    109,343.61x = 9,292,978,318.35
  5. Step 5: Solve for x
    x = 9,292,978,318.35/109,343.61
  6. Step 6: Final answer
    x = 84,988.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.