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Finding the Fourth Proportional to 173,412.78, 260,228.52 and 68,218.08

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Solution

The fourth proportional to 173,412.78, 260,228.52 and 68,218.08 is: 102,370.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,412.78 : 260,228.52 = 68,218.08 : x
  2. Step 2: Convert to fraction form
    173,412.78/260,228.52 = 68,218.08/x
  3. Step 3: Cross multiply
    173,412.78x = 260,228.52 × 68,218.08
  4. Step 4: Simplify right side
    173,412.78x = 17,752,289,995.64
  5. Step 5: Solve for x
    x = 17,752,289,995.64/173,412.78
  6. Step 6: Final answer
    x = 102,370.14

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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.