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Finding the Fourth Proportional to 119,601.90, 165,058.10 and 65,886.92

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Solution

The fourth proportional to 119,601.90, 165,058.10 and 65,886.92 is: 90,928.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,601.90 : 165,058.10 = 65,886.92 : x
  2. Step 2: Convert to fraction form
    119,601.90/165,058.10 = 65,886.92/x
  3. Step 3: Cross multiply
    119,601.90x = 165,058.10 × 65,886.92
  4. Step 4: Simplify right side
    119,601.90x = 10,875,169,964.64
  5. Step 5: Solve for x
    x = 10,875,169,964.64/119,601.90
  6. Step 6: Final answer
    x = 90,928.07

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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.