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Finding the Fourth Proportional to 119,488.13, 164,874.32 and 68,491.48

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Solution

The fourth proportional to 119,488.13, 164,874.32 and 68,491.48 is: 94,507.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,488.13 : 164,874.32 = 68,491.48 : x
  2. Step 2: Convert to fraction form
    119,488.13/164,874.32 = 68,491.48/x
  3. Step 3: Cross multiply
    119,488.13x = 164,874.32 × 68,491.48
  4. Step 4: Simplify right side
    119,488.13x = 11,292,485,023.96
  5. Step 5: Solve for x
    x = 11,292,485,023.96/119,488.13
  6. Step 6: Final answer
    x = 94,507.17

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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.