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Finding the Fourth Proportional to 86,752.98, 119,671.29 and 59,909.58

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Solution

The fourth proportional to 86,752.98, 119,671.29 and 59,909.58 is: 82,642.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,752.98 : 119,671.29 = 59,909.58 : x
  2. Step 2: Convert to fraction form
    86,752.98/119,671.29 = 59,909.58/x
  3. Step 3: Cross multiply
    86,752.98x = 119,671.29 × 59,909.58
  4. Step 4: Simplify right side
    86,752.98x = 7,169,456,721.96
  5. Step 5: Solve for x
    x = 7,169,456,721.96/86,752.98
  6. Step 6: Final answer
    x = 82,642.20

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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.