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Finding the Fourth Proportional to 83,668.77, 115,462.66 and 50,134.77

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Solution

The fourth proportional to 83,668.77, 115,462.66 and 50,134.77 is: 69,185.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.77 : 115,462.66 = 50,134.77 : x
  2. Step 2: Convert to fraction form
    83,668.77/115,462.66 = 50,134.77/x
  3. Step 3: Cross multiply
    83,668.77x = 115,462.66 × 50,134.77
  4. Step 4: Simplify right side
    83,668.77x = 5,788,693,902.69
  5. Step 5: Solve for x
    x = 5,788,693,902.69/83,668.77
  6. Step 6: Final answer
    x = 69,185.84

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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.