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Finding the Fourth Proportional to 103,209.50, 154,840.26 and 29,337.50

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Solution

The fourth proportional to 103,209.50, 154,840.26 and 29,337.50 is: 44,013.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,209.50 : 154,840.26 = 29,337.50 : x
  2. Step 2: Convert to fraction form
    103,209.50/154,840.26 = 29,337.50/x
  3. Step 3: Cross multiply
    103,209.50x = 154,840.26 × 29,337.50
  4. Step 4: Simplify right side
    103,209.50x = 4,542,626,127.75
  5. Step 5: Solve for x
    x = 4,542,626,127.75/103,209.50
  6. Step 6: Final answer
    x = 44,013.64

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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.