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Finding the Fourth Proportional to 173,565.48, 260,348.22 and 90,621.48

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Solution

The fourth proportional to 173,565.48, 260,348.22 and 90,621.48 is: 135,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,565.48 : 260,348.22 = 90,621.48 : x
  2. Step 2: Convert to fraction form
    173,565.48/260,348.22 = 90,621.48/x
  3. Step 3: Cross multiply
    173,565.48x = 260,348.22 × 90,621.48
  4. Step 4: Simplify right side
    173,565.48x = 23,593,141,011.77
  5. Step 5: Solve for x
    x = 23,593,141,011.77/173,565.48
  6. Step 6: Final answer
    x = 135,932.22

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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.