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Finding the Fourth Proportional to 135,312.30, 202,968.45 and 41,817.90

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Solution

The fourth proportional to 135,312.30, 202,968.45 and 41,817.90 is: 62,726.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,312.30 : 202,968.45 = 41,817.90 : x
  2. Step 2: Convert to fraction form
    135,312.30/202,968.45 = 41,817.90/x
  3. Step 3: Cross multiply
    135,312.30x = 202,968.45 × 41,817.90
  4. Step 4: Simplify right side
    135,312.30x = 8,487,714,345.26
  5. Step 5: Solve for x
    x = 8,487,714,345.26/135,312.30
  6. Step 6: Final answer
    x = 62,726.85

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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.