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Finding the Fourth Proportional to 124,684.62, 172,064.55 and 68,095.98

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Solution

The fourth proportional to 124,684.62, 172,064.55 and 68,095.98 is: 93,972.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,684.62 : 172,064.55 = 68,095.98 : x
  2. Step 2: Convert to fraction form
    124,684.62/172,064.55 = 68,095.98/x
  3. Step 3: Cross multiply
    124,684.62x = 172,064.55 × 68,095.98
  4. Step 4: Simplify right side
    124,684.62x = 11,716,904,155.51
  5. Step 5: Solve for x
    x = 11,716,904,155.51/124,684.62
  6. Step 6: Final answer
    x = 93,972.33

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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.