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Finding the Fourth Proportional to 112,785, 169,188.93 and 41,726.40

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Solution

The fourth proportional to 112,785, 169,188.93 and 41,726.40 is: 62,593.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,785 : 169,188.93 = 41,726.40 : x
  2. Step 2: Convert to fraction form
    112,785/169,188.93 = 41,726.40/x
  3. Step 3: Cross multiply
    112,785x = 169,188.93 × 41,726.40
  4. Step 4: Simplify right side
    112,785x = 7,059,644,968.75
  5. Step 5: Solve for x
    x = 7,059,644,968.75/112,785
  6. Step 6: Final answer
    x = 62,593.83

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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.