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Finding the Fourth Proportional to 83,503.75, 115,236.66 and 45,264.55

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Solution

The fourth proportional to 83,503.75, 115,236.66 and 45,264.55 is: 62,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,503.75 : 115,236.66 = 45,264.55 : x
  2. Step 2: Convert to fraction form
    83,503.75/115,236.66 = 45,264.55/x
  3. Step 3: Cross multiply
    83,503.75x = 115,236.66 × 45,264.55
  4. Step 4: Simplify right side
    83,503.75x = 5,216,135,558.40
  5. Step 5: Solve for x
    x = 5,216,135,558.40/83,503.75
  6. Step 6: Final answer
    x = 62,465.88

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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.