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Finding the Fourth Proportional to 173,564.89, 260,370.62 and 61,218.70

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Solution

The fourth proportional to 173,564.89, 260,370.62 and 61,218.70 is: 91,836.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,564.89 : 260,370.62 = 61,218.70 : x
  2. Step 2: Convert to fraction form
    173,564.89/260,370.62 = 61,218.70/x
  3. Step 3: Cross multiply
    173,564.89x = 260,370.62 × 61,218.70
  4. Step 4: Simplify right side
    173,564.89x = 15,939,550,874.59
  5. Step 5: Solve for x
    x = 15,939,550,874.59/173,564.89
  6. Step 6: Final answer
    x = 91,836.26

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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.