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Finding the Fourth Proportional to 73,391.65, 101,278.77 and 43,178.92

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Solution

The fourth proportional to 73,391.65, 101,278.77 and 43,178.92 is: 59,585.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,391.65 : 101,278.77 = 43,178.92 : x
  2. Step 2: Convert to fraction form
    73,391.65/101,278.77 = 43,178.92/x
  3. Step 3: Cross multiply
    73,391.65x = 101,278.77 × 43,178.92
  4. Step 4: Simplify right side
    73,391.65x = 4,373,108,122.82
  5. Step 5: Solve for x
    x = 4,373,108,122.82/73,391.65
  6. Step 6: Final answer
    x = 59,585.91

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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.