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Finding the Fourth Proportional to 119,363.13, 164,721.06 and 65,651.76

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Solution

The fourth proportional to 119,363.13, 164,721.06 and 65,651.76 is: 90,599.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,363.13 : 164,721.06 = 65,651.76 : x
  2. Step 2: Convert to fraction form
    119,363.13/164,721.06 = 65,651.76/x
  3. Step 3: Cross multiply
    119,363.13x = 164,721.06 × 65,651.76
  4. Step 4: Simplify right side
    119,363.13x = 10,814,227,498.07
  5. Step 5: Solve for x
    x = 10,814,227,498.07/119,363.13
  6. Step 6: Final answer
    x = 90,599.40

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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.