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Finding the Fourth Proportional to 109,057.81, 150,500.01 and 61,311.55

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Solution

The fourth proportional to 109,057.81, 150,500.01 and 61,311.55 is: 84,610.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,057.81 : 150,500.01 = 61,311.55 : x
  2. Step 2: Convert to fraction form
    109,057.81/150,500.01 = 61,311.55/x
  3. Step 3: Cross multiply
    109,057.81x = 150,500.01 × 61,311.55
  4. Step 4: Simplify right side
    109,057.81x = 9,227,387,829.06
  5. Step 5: Solve for x
    x = 9,227,387,829.06/109,057.81
  6. Step 6: Final answer
    x = 84,610.06

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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.