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Finding the Fourth Proportional to 147,125.76, 203,035.68 and 80,057.76

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Solution

The fourth proportional to 147,125.76, 203,035.68 and 80,057.76 is: 110,480.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,125.76 : 203,035.68 = 80,057.76 : x
  2. Step 2: Convert to fraction form
    147,125.76/203,035.68 = 80,057.76/x
  3. Step 3: Cross multiply
    147,125.76x = 203,035.68 × 80,057.76
  4. Step 4: Simplify right side
    147,125.76x = 16,254,581,740.88
  5. Step 5: Solve for x
    x = 16,254,581,740.88/147,125.76
  6. Step 6: Final answer
    x = 110,480.87

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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.