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Finding the Fourth Proportional to 83,616.76, 115,390.74 and 45,890.74

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Solution

The fourth proportional to 83,616.76, 115,390.74 and 45,890.74 is: 63,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,616.76 : 115,390.74 = 45,890.74 : x
  2. Step 2: Convert to fraction form
    83,616.76/115,390.74 = 45,890.74/x
  3. Step 3: Cross multiply
    83,616.76x = 115,390.74 × 45,890.74
  4. Step 4: Simplify right side
    83,616.76x = 5,295,366,447.75
  5. Step 5: Solve for x
    x = 5,295,366,447.75/83,616.76
  6. Step 6: Final answer
    x = 63,329.01

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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.