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Finding the Fourth Proportional to 170,262.81, 234,973.29 and 93,781.89

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Solution

The fourth proportional to 170,262.81, 234,973.29 and 93,781.89 is: 129,424.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,262.81 : 234,973.29 = 93,781.89 : x
  2. Step 2: Convert to fraction form
    170,262.81/234,973.29 = 93,781.89/x
  3. Step 3: Cross multiply
    170,262.81x = 234,973.29 × 93,781.89
  4. Step 4: Simplify right side
    170,262.81x = 22,036,239,235.72
  5. Step 5: Solve for x
    x = 22,036,239,235.72/170,262.81
  6. Step 6: Final answer
    x = 129,424.85

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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.