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Finding the Fourth Proportional to 72,697.80, 100,305.04 and 44,393.16

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Solution

The fourth proportional to 72,697.80, 100,305.04 and 44,393.16 is: 61,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,697.80 : 100,305.04 = 44,393.16 : x
  2. Step 2: Convert to fraction form
    72,697.80/100,305.04 = 44,393.16/x
  3. Step 3: Cross multiply
    72,697.80x = 100,305.04 × 44,393.16
  4. Step 4: Simplify right side
    72,697.80x = 4,452,857,689.53
  5. Step 5: Solve for x
    x = 4,452,857,689.53/72,697.80
  6. Step 6: Final answer
    x = 61,251.62

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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.