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Finding the Fourth Proportional to 69,244.77, 103,830.25 and 35,931.30

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Solution

The fourth proportional to 69,244.77, 103,830.25 and 35,931.30 is: 53,877.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,244.77 : 103,830.25 = 35,931.30 : x
  2. Step 2: Convert to fraction form
    69,244.77/103,830.25 = 35,931.30/x
  3. Step 3: Cross multiply
    69,244.77x = 103,830.25 × 35,931.30
  4. Step 4: Simplify right side
    69,244.77x = 3,730,755,861.83
  5. Step 5: Solve for x
    x = 3,730,755,861.83/69,244.77
  6. Step 6: Final answer
    x = 53,877.80

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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.