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Finding the Fourth Proportional to 119,424.33, 164,809.55 and 65,713.29

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Solution

The fourth proportional to 119,424.33, 164,809.55 and 65,713.29 is: 90,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,424.33 : 164,809.55 = 65,713.29 : x
  2. Step 2: Convert to fraction form
    119,424.33/164,809.55 = 65,713.29/x
  3. Step 3: Cross multiply
    119,424.33x = 164,809.55 × 65,713.29
  4. Step 4: Simplify right side
    119,424.33x = 10,830,177,425.35
  5. Step 5: Solve for x
    x = 10,830,177,425.35/119,424.33
  6. Step 6: Final answer
    x = 90,686.52

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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.