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Finding the Fourth Proportional to 170,267.88, 234,975.88 and 105,772.66

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Solution

The fourth proportional to 170,267.88, 234,975.88 and 105,772.66 is: 145,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,267.88 : 234,975.88 = 105,772.66 : x
  2. Step 2: Convert to fraction form
    170,267.88/234,975.88 = 105,772.66/x
  3. Step 3: Cross multiply
    170,267.88x = 234,975.88 × 105,772.66
  4. Step 4: Simplify right side
    170,267.88x = 24,854,023,863.44
  5. Step 5: Solve for x
    x = 24,854,023,863.44/170,267.88
  6. Step 6: Final answer
    x = 145,970.13

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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.