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Finding the Fourth Proportional to 115,584.90, 173,401.65 and 65,624.10

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Solution

The fourth proportional to 115,584.90, 173,401.65 and 65,624.10 is: 98,449.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,584.90 : 173,401.65 = 65,624.10 : x
  2. Step 2: Convert to fraction form
    115,584.90/173,401.65 = 65,624.10/x
  3. Step 3: Cross multiply
    115,584.90x = 173,401.65 × 65,624.10
  4. Step 4: Simplify right side
    115,584.90x = 11,379,327,219.77
  5. Step 5: Solve for x
    x = 11,379,327,219.77/115,584.90
  6. Step 6: Final answer
    x = 98,449.95

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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.