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Finding the Fourth Proportional to 86,298.98, 129,273.51 and 44,658.50

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Solution

The fourth proportional to 86,298.98, 129,273.51 and 44,658.50 is: 66,897.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,298.98 : 129,273.51 = 44,658.50 : x
  2. Step 2: Convert to fraction form
    86,298.98/129,273.51 = 44,658.50/x
  3. Step 3: Cross multiply
    86,298.98x = 129,273.51 × 44,658.50
  4. Step 4: Simplify right side
    86,298.98x = 5,773,161,046.34
  5. Step 5: Solve for x
    x = 5,773,161,046.34/86,298.98
  6. Step 6: Final answer
    x = 66,897.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.