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Finding the Fourth Proportional to 124,382.38, 171,652.31 and 70,676.48

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Solution

The fourth proportional to 124,382.38, 171,652.31 and 70,676.48 is: 97,536.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,382.38 : 171,652.31 = 70,676.48 : x
  2. Step 2: Convert to fraction form
    124,382.38/171,652.31 = 70,676.48/x
  3. Step 3: Cross multiply
    124,382.38x = 171,652.31 × 70,676.48
  4. Step 4: Simplify right side
    124,382.38x = 12,131,781,054.67
  5. Step 5: Solve for x
    x = 12,131,781,054.67/124,382.38
  6. Step 6: Final answer
    x = 97,536.17

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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.