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Finding the Fourth Proportional to 91,322.48, 125,943.42 and 57,334.13

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Solution

The fourth proportional to 91,322.48, 125,943.42 and 57,334.13 is: 79,069.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,322.48 : 125,943.42 = 57,334.13 : x
  2. Step 2: Convert to fraction form
    91,322.48/125,943.42 = 57,334.13/x
  3. Step 3: Cross multiply
    91,322.48x = 125,943.42 × 57,334.13
  4. Step 4: Simplify right side
    91,322.48x = 7,220,856,514.78
  5. Step 5: Solve for x
    x = 7,220,856,514.78/91,322.48
  6. Step 6: Final answer
    x = 79,069.87

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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.