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Finding the Fourth Proportional to 83,502.75, 115,235.28 and 45,263.55

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Solution

The fourth proportional to 83,502.75, 115,235.28 and 45,263.55 is: 62,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,502.75 : 115,235.28 = 45,263.55 : x
  2. Step 2: Convert to fraction form
    83,502.75/115,235.28 = 45,263.55/x
  3. Step 3: Cross multiply
    83,502.75x = 115,235.28 × 45,263.55
  4. Step 4: Simplify right side
    83,502.75x = 5,215,957,858.04
  5. Step 5: Solve for x
    x = 5,215,957,858.04/83,502.75
  6. Step 6: Final answer
    x = 62,464.50

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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.