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Finding the Fourth Proportional to 83,376.59, 115,160.69 and 60,679.58

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Solution

The fourth proportional to 83,376.59, 115,160.69 and 60,679.58 is: 83,811.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,376.59 : 115,160.69 = 60,679.58 : x
  2. Step 2: Convert to fraction form
    83,376.59/115,160.69 = 60,679.58/x
  3. Step 3: Cross multiply
    83,376.59x = 115,160.69 × 60,679.58
  4. Step 4: Simplify right side
    83,376.59x = 6,987,901,998.31
  5. Step 5: Solve for x
    x = 6,987,901,998.31/83,376.59
  6. Step 6: Final answer
    x = 83,811.32

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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.