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Finding the Fourth Proportional to 67,551.30, 101,337.84 and 20,804.16

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Solution

The fourth proportional to 67,551.30, 101,337.84 and 20,804.16 is: 31,209.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,551.30 : 101,337.84 = 20,804.16 : x
  2. Step 2: Convert to fraction form
    67,551.30/101,337.84 = 20,804.16/x
  3. Step 3: Cross multiply
    67,551.30x = 101,337.84 × 20,804.16
  4. Step 4: Simplify right side
    67,551.30x = 2,108,248,637.41
  5. Step 5: Solve for x
    x = 2,108,248,637.41/67,551.30
  6. Step 6: Final answer
    x = 31,209.59

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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.