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Finding the Fourth Proportional to 124,652.96, 172,020.40 and 68,063.94

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Solution

The fourth proportional to 124,652.96, 172,020.40 and 68,063.94 is: 93,927.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,652.96 : 172,020.40 = 68,063.94 : x
  2. Step 2: Convert to fraction form
    124,652.96/172,020.40 = 68,063.94/x
  3. Step 3: Cross multiply
    124,652.96x = 172,020.40 × 68,063.94
  4. Step 4: Simplify right side
    124,652.96x = 11,708,386,184.38
  5. Step 5: Solve for x
    x = 11,708,386,184.38/124,652.96
  6. Step 6: Final answer
    x = 93,927.86

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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.