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Finding the Fourth Proportional to 91,092.31, 125,718.36 and 53,366.56

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Solution

The fourth proportional to 91,092.31, 125,718.36 and 53,366.56 is: 73,652.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,092.31 : 125,718.36 = 53,366.56 : x
  2. Step 2: Convert to fraction form
    91,092.31/125,718.36 = 53,366.56/x
  3. Step 3: Cross multiply
    91,092.31x = 125,718.36 × 53,366.56
  4. Step 4: Simplify right side
    91,092.31x = 6,709,156,402.04
  5. Step 5: Solve for x
    x = 6,709,156,402.04/91,092.31
  6. Step 6: Final answer
    x = 73,652.28

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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.