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Finding the Fourth Proportional to 97,279.75, 145,919.67 and 23,407.75

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Solution

The fourth proportional to 97,279.75, 145,919.67 and 23,407.75 is: 35,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,279.75 : 145,919.67 = 23,407.75 : x
  2. Step 2: Convert to fraction form
    97,279.75/145,919.67 = 23,407.75/x
  3. Step 3: Cross multiply
    97,279.75x = 145,919.67 × 23,407.75
  4. Step 4: Simplify right side
    97,279.75x = 3,415,651,155.44
  5. Step 5: Solve for x
    x = 3,415,651,155.44/97,279.75
  6. Step 6: Final answer
    x = 35,111.64

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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.