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Finding the Fourth Proportional to 67,208.52, 100,827.81 and 20,465.04

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Solution

The fourth proportional to 67,208.52, 100,827.81 and 20,465.04 is: 30,702.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,208.52 : 100,827.81 = 20,465.04 : x
  2. Step 2: Convert to fraction form
    67,208.52/100,827.81 = 20,465.04/x
  3. Step 3: Cross multiply
    67,208.52x = 100,827.81 × 20,465.04
  4. Step 4: Simplify right side
    67,208.52x = 2,063,445,164.76
  5. Step 5: Solve for x
    x = 2,063,445,164.76/67,208.52
  6. Step 6: Final answer
    x = 30,702.14

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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.