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Finding the Fourth Proportional to 67,474.76, 100,666.56 and 60,749.12

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Solution

The fourth proportional to 67,474.76, 100,666.56 and 60,749.12 is: 90,632.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,474.76 : 100,666.56 = 60,749.12 : x
  2. Step 2: Convert to fraction form
    67,474.76/100,666.56 = 60,749.12/x
  3. Step 3: Cross multiply
    67,474.76x = 100,666.56 × 60,749.12
  4. Step 4: Simplify right side
    67,474.76x = 6,115,405,412.90
  5. Step 5: Solve for x
    x = 6,115,405,412.90/67,474.76
  6. Step 6: Final answer
    x = 90,632.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.