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Finding the Fourth Proportional to 119,476.40, 164,876.12 and 65,760.26

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Solution

The fourth proportional to 119,476.40, 164,876.12 and 65,760.26 is: 90,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,476.40 : 164,876.12 = 65,760.26 : x
  2. Step 2: Convert to fraction form
    119,476.40/164,876.12 = 65,760.26/x
  3. Step 3: Cross multiply
    119,476.40x = 164,876.12 × 65,760.26
  4. Step 4: Simplify right side
    119,476.40x = 10,842,296,518.99
  5. Step 5: Solve for x
    x = 10,842,296,518.99/119,476.40
  6. Step 6: Final answer
    x = 90,748.44

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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.