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Finding the Fourth Proportional to 172,781.59, 259,154.86 and 46,405.41

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Solution

The fourth proportional to 172,781.59, 259,154.86 and 46,405.41 is: 69,603.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,781.59 : 259,154.86 = 46,405.41 : x
  2. Step 2: Convert to fraction form
    172,781.59/259,154.86 = 46,405.41/x
  3. Step 3: Cross multiply
    172,781.59x = 259,154.86 × 46,405.41
  4. Step 4: Simplify right side
    172,781.59x = 12,026,187,531.79
  5. Step 5: Solve for x
    x = 12,026,187,531.79/172,781.59
  6. Step 6: Final answer
    x = 69,603.41

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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.