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Finding the Fourth Proportional to 119,489.17, 164,895.04 and 65,041.55

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Solution

The fourth proportional to 119,489.17, 164,895.04 and 65,041.55 is: 89,757.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,489.17 : 164,895.04 = 65,041.55 : x
  2. Step 2: Convert to fraction form
    119,489.17/164,895.04 = 65,041.55/x
  3. Step 3: Cross multiply
    119,489.17x = 164,895.04 × 65,041.55
  4. Step 4: Simplify right side
    119,489.17x = 10,725,029,238.55
  5. Step 5: Solve for x
    x = 10,725,029,238.55/119,489.17
  6. Step 6: Final answer
    x = 89,757.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.