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Finding the Fourth Proportional to 103,843.84, 155,765.80 and 59,439.68

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Solution

The fourth proportional to 103,843.84, 155,765.80 and 59,439.68 is: 89,159.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,843.84 : 155,765.80 = 59,439.68 : x
  2. Step 2: Convert to fraction form
    103,843.84/155,765.80 = 59,439.68/x
  3. Step 3: Cross multiply
    103,843.84x = 155,765.80 × 59,439.68
  4. Step 4: Simplify right side
    103,843.84x = 9,258,669,306.94
  5. Step 5: Solve for x
    x = 9,258,669,306.94/103,843.84
  6. Step 6: Final answer
    x = 89,159.54

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1.5x scale

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.