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Finding the Fourth Proportional to 123,755.16, 185,640.18 and 35,015.40

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Solution

The fourth proportional to 123,755.16, 185,640.18 and 35,015.40 is: 52,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,755.16 : 185,640.18 = 35,015.40 : x
  2. Step 2: Convert to fraction form
    123,755.16/185,640.18 = 35,015.40/x
  3. Step 3: Cross multiply
    123,755.16x = 185,640.18 × 35,015.40
  4. Step 4: Simplify right side
    123,755.16x = 6,500,265,158.77
  5. Step 5: Solve for x
    x = 6,500,265,158.77/123,755.16
  6. Step 6: Final answer
    x = 52,525.21

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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.