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Finding the Fourth Proportional to 119,566.98, 165,003.60 and 65,853.66

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Solution

The fourth proportional to 119,566.98, 165,003.60 and 65,853.66 is: 90,878.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,566.98 : 165,003.60 = 65,853.66 : x
  2. Step 2: Convert to fraction form
    119,566.98/165,003.60 = 65,853.66/x
  3. Step 3: Cross multiply
    119,566.98x = 165,003.60 × 65,853.66
  4. Step 4: Simplify right side
    119,566.98x = 10,866,090,973.18
  5. Step 5: Solve for x
    x = 10,866,090,973.18/119,566.98
  6. Step 6: Final answer
    x = 90,878.69

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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.