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Finding the Fourth Proportional to 119,585.97, 165,026.67 and 65,876.01

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Solution

The fourth proportional to 119,585.97, 165,026.67 and 65,876.01 is: 90,907.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,585.97 : 165,026.67 = 65,876.01 : x
  2. Step 2: Convert to fraction form
    119,585.97/165,026.67 = 65,876.01/x
  3. Step 3: Cross multiply
    119,585.97x = 165,026.67 × 65,876.01
  4. Step 4: Simplify right side
    119,585.97x = 10,871,298,563.19
  5. Step 5: Solve for x
    x = 10,871,298,563.19/119,585.97
  6. Step 6: Final answer
    x = 90,907.81

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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.