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Finding the Fourth Proportional to 119,570.16, 165,000.44 and 65,853.36

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Solution

The fourth proportional to 119,570.16, 165,000.44 and 65,853.36 is: 90,874.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,570.16 : 165,000.44 = 65,853.36 : x
  2. Step 2: Convert to fraction form
    119,570.16/165,000.44 = 65,853.36/x
  3. Step 3: Cross multiply
    119,570.16x = 165,000.44 × 65,853.36
  4. Step 4: Simplify right side
    119,570.16x = 10,865,833,375.48
  5. Step 5: Solve for x
    x = 10,865,833,375.48/119,570.16
  6. Step 6: Final answer
    x = 90,874.12

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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.