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Finding the Fourth Proportional to 172,642.39, 259,062.40 and 93,763.51

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Solution

The fourth proportional to 172,642.39, 259,062.40 and 93,763.51 is: 140,698.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,642.39 : 259,062.40 = 93,763.51 : x
  2. Step 2: Convert to fraction form
    172,642.39/259,062.40 = 93,763.51/x
  3. Step 3: Cross multiply
    172,642.39x = 259,062.40 × 93,763.51
  4. Step 4: Simplify right side
    172,642.39x = 24,290,599,402.57
  5. Step 5: Solve for x
    x = 24,290,599,402.57/172,642.39
  6. Step 6: Final answer
    x = 140,698.93

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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.