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Finding the Fourth Proportional to 170,744.78, 235,658.64 and 101,838.66

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Solution

The fourth proportional to 170,744.78, 235,658.64 and 101,838.66 is: 140,555.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,744.78 : 235,658.64 = 101,838.66 : x
  2. Step 2: Convert to fraction form
    170,744.78/235,658.64 = 101,838.66/x
  3. Step 3: Cross multiply
    170,744.78x = 235,658.64 × 101,838.66
  4. Step 4: Simplify right side
    170,744.78x = 23,999,160,115.02
  5. Step 5: Solve for x
    x = 23,999,160,115.02/170,744.78
  6. Step 6: Final answer
    x = 140,555.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.