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Finding the Fourth Proportional to 124,344.21, 171,621.45 and 73,337.88

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Solution

The fourth proportional to 124,344.21, 171,621.45 and 73,337.88 is: 101,221.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,344.21 : 171,621.45 = 73,337.88 : x
  2. Step 2: Convert to fraction form
    124,344.21/171,621.45 = 73,337.88/x
  3. Step 3: Cross multiply
    124,344.21x = 171,621.45 × 73,337.88
  4. Step 4: Simplify right side
    124,344.21x = 12,586,353,305.53
  5. Step 5: Solve for x
    x = 12,586,353,305.53/124,344.21
  6. Step 6: Final answer
    x = 101,221.87

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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.