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Finding the Fourth Proportional to 170,607.96, 255,387.06 and 111,315.96

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Solution

The fourth proportional to 170,607.96, 255,387.06 and 111,315.96 is: 166,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,607.96 : 255,387.06 = 111,315.96 : x
  2. Step 2: Convert to fraction form
    170,607.96/255,387.06 = 111,315.96/x
  3. Step 3: Cross multiply
    170,607.96x = 255,387.06 × 111,315.96
  4. Step 4: Simplify right side
    170,607.96x = 28,428,655,755.48
  5. Step 5: Solve for x
    x = 28,428,655,755.48/170,607.96
  6. Step 6: Final answer
    x = 166,631.47

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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.