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Finding the Fourth Proportional to 83,606.58, 115,378.92 and 45,880.92

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Solution

The fourth proportional to 83,606.58, 115,378.92 and 45,880.92 is: 63,316.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,606.58 : 115,378.92 = 45,880.92 : x
  2. Step 2: Convert to fraction form
    83,606.58/115,378.92 = 45,880.92/x
  3. Step 3: Cross multiply
    83,606.58x = 115,378.92 × 45,880.92
  4. Step 4: Simplify right side
    83,606.58x = 5,293,690,998.21
  5. Step 5: Solve for x
    x = 5,293,690,998.21/83,606.58
  6. Step 6: Final answer
    x = 63,316.68

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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.