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Finding the Fourth Proportional to 86,329.98, 119,167.80 and 63,849.96

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Solution

The fourth proportional to 86,329.98, 119,167.80 and 63,849.96 is: 88,136.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,329.98 : 119,167.80 = 63,849.96 : x
  2. Step 2: Convert to fraction form
    86,329.98/119,167.80 = 63,849.96/x
  3. Step 3: Cross multiply
    86,329.98x = 119,167.80 × 63,849.96
  4. Step 4: Simplify right side
    86,329.98x = 7,608,859,263.29
  5. Step 5: Solve for x
    x = 7,608,859,263.29/86,329.98
  6. Step 6: Final answer
    x = 88,136.93

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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.