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Finding the Fourth Proportional to 124,651.96, 172,019.02 and 68,062.93

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Solution

The fourth proportional to 124,651.96, 172,019.02 and 68,062.93 is: 93,926.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,651.96 : 172,019.02 = 68,062.93 : x
  2. Step 2: Convert to fraction form
    124,651.96/172,019.02 = 68,062.93/x
  3. Step 3: Cross multiply
    124,651.96x = 172,019.02 × 68,062.93
  4. Step 4: Simplify right side
    124,651.96x = 11,708,118,516.93
  5. Step 5: Solve for x
    x = 11,708,118,516.93/124,651.96
  6. Step 6: Final answer
    x = 93,926.47

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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.