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Finding the Fourth Proportional to 119,574.84, 165,020.77 and 65,859.84

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Solution

The fourth proportional to 119,574.84, 165,020.77 and 65,859.84 is: 90,890.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,574.84 : 165,020.77 = 65,859.84 : x
  2. Step 2: Convert to fraction form
    119,574.84/165,020.77 = 65,859.84/x
  3. Step 3: Cross multiply
    119,574.84x = 165,020.77 × 65,859.84
  4. Step 4: Simplify right side
    119,574.84x = 10,868,241,591.20
  5. Step 5: Solve for x
    x = 10,868,241,591.20/119,574.84
  6. Step 6: Final answer
    x = 90,890.70

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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.