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Finding the Fourth Proportional to 119,424.08, 164,809.20 and 65,713.04

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Solution

The fourth proportional to 119,424.08, 164,809.20 and 65,713.04 is: 90,686.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,424.08 : 164,809.20 = 65,713.04 : x
  2. Step 2: Convert to fraction form
    119,424.08/164,809.20 = 65,713.04/x
  3. Step 3: Cross multiply
    119,424.08x = 164,809.20 × 65,713.04
  4. Step 4: Simplify right side
    119,424.08x = 10,830,113,551.97
  5. Step 5: Solve for x
    x = 10,830,113,551.97/119,424.08
  6. Step 6: Final answer
    x = 90,686.18

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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.