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Finding the Fourth Proportional to 110,515.57, 152,509.42 and 61,460.20

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Solution

The fourth proportional to 110,515.57, 152,509.42 and 61,460.20 is: 84,813.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,515.57 : 152,509.42 = 61,460.20 : x
  2. Step 2: Convert to fraction form
    110,515.57/152,509.42 = 61,460.20/x
  3. Step 3: Cross multiply
    110,515.57x = 152,509.42 × 61,460.20
  4. Step 4: Simplify right side
    110,515.57x = 9,373,258,692.54
  5. Step 5: Solve for x
    x = 9,373,258,692.54/110,515.57
  6. Step 6: Final answer
    x = 84,813.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.