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Finding the Fourth Proportional to 83,318.76, 114,979.88 and 45,593

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Solution

The fourth proportional to 83,318.76, 114,979.88 and 45,593 is: 62,918.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,318.76 : 114,979.88 = 45,593 : x
  2. Step 2: Convert to fraction form
    83,318.76/114,979.88 = 45,593/x
  3. Step 3: Cross multiply
    83,318.76x = 114,979.88 × 45,593
  4. Step 4: Simplify right side
    83,318.76x = 5,242,277,668.84
  5. Step 5: Solve for x
    x = 5,242,277,668.84/83,318.76
  6. Step 6: Final answer
    x = 62,918.34

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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.