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Finding the Fourth Proportional to 110,689.77, 165,820.62 and 92,706.93

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Solution

The fourth proportional to 110,689.77, 165,820.62 and 92,706.93 is: 138,881.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,689.77 : 165,820.62 = 92,706.93 : x
  2. Step 2: Convert to fraction form
    110,689.77/165,820.62 = 92,706.93/x
  3. Step 3: Cross multiply
    110,689.77x = 165,820.62 × 92,706.93
  4. Step 4: Simplify right side
    110,689.77x = 15,372,720,842.66
  5. Step 5: Solve for x
    x = 15,372,720,842.66/110,689.77
  6. Step 6: Final answer
    x = 138,881.13

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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.