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Finding the Fourth Proportional to 70,393.87, 105,062.09 and 60,864.13

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Solution

The fourth proportional to 70,393.87, 105,062.09 and 60,864.13 is: 90,839.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,393.87 : 105,062.09 = 60,864.13 : x
  2. Step 2: Convert to fraction form
    70,393.87/105,062.09 = 60,864.13/x
  3. Step 3: Cross multiply
    70,393.87x = 105,062.09 × 60,864.13
  4. Step 4: Simplify right side
    70,393.87x = 6,394,512,703.83
  5. Step 5: Solve for x
    x = 6,394,512,703.83/70,393.87
  6. Step 6: Final answer
    x = 90,839.06

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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.