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Finding the Fourth Proportional to 104,293.17, 155,098.04 and 100,971.68

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Solution

The fourth proportional to 104,293.17, 155,098.04 and 100,971.68 is: 150,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,293.17 : 155,098.04 = 100,971.68 : x
  2. Step 2: Convert to fraction form
    104,293.17/155,098.04 = 100,971.68/x
  3. Step 3: Cross multiply
    104,293.17x = 155,098.04 × 100,971.68
  4. Step 4: Simplify right side
    104,293.17x = 15,660,508,383.16
  5. Step 5: Solve for x
    x = 15,660,508,383.16/104,293.17
  6. Step 6: Final answer
    x = 150,158.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.