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Finding the Fourth Proportional to 103,765.58, 155,398.83 and 59,257.43

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Solution

The fourth proportional to 103,765.58, 155,398.83 and 59,257.43 is: 88,743.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,765.58 : 155,398.83 = 59,257.43 : x
  2. Step 2: Convert to fraction form
    103,765.58/155,398.83 = 59,257.43/x
  3. Step 3: Cross multiply
    103,765.58x = 155,398.83 × 59,257.43
  4. Step 4: Simplify right side
    103,765.58x = 9,208,535,290.81
  5. Step 5: Solve for x
    x = 9,208,535,290.81/103,765.58
  6. Step 6: Final answer
    x = 88,743.64

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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.