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Finding the Fourth Proportional to 67,301.80, 100,866.30 and 51,641.80

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Solution

The fourth proportional to 67,301.80, 100,866.30 and 51,641.80 is: 77,396.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,301.80 : 100,866.30 = 51,641.80 : x
  2. Step 2: Convert to fraction form
    67,301.80/100,866.30 = 51,641.80/x
  3. Step 3: Cross multiply
    67,301.80x = 100,866.30 × 51,641.80
  4. Step 4: Simplify right side
    67,301.80x = 5,208,917,291.34
  5. Step 5: Solve for x
    x = 5,208,917,291.34/67,301.80
  6. Step 6: Final answer
    x = 77,396.40

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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.