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Finding the Fourth Proportional to 165,065.68, 247,503.55 and 88,033.64

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Solution

The fourth proportional to 165,065.68, 247,503.55 and 88,033.64 is: 131,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,065.68 : 247,503.55 = 88,033.64 : x
  2. Step 2: Convert to fraction form
    165,065.68/247,503.55 = 88,033.64/x
  3. Step 3: Cross multiply
    165,065.68x = 247,503.55 × 88,033.64
  4. Step 4: Simplify right side
    165,065.68x = 21,788,637,979.25
  5. Step 5: Solve for x
    x = 21,788,637,979.25/165,065.68
  6. Step 6: Final answer
    x = 131,999.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.