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Finding the Fourth Proportional to 175,139.25, 241,692.44 and 99,687.75

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Solution

The fourth proportional to 175,139.25, 241,692.44 and 99,687.75 is: 137,569.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,139.25 : 241,692.44 = 99,687.75 : x
  2. Step 2: Convert to fraction form
    175,139.25/241,692.44 = 99,687.75/x
  3. Step 3: Cross multiply
    175,139.25x = 241,692.44 × 99,687.75
  4. Step 4: Simplify right side
    175,139.25x = 24,093,775,037.17
  5. Step 5: Solve for x
    x = 24,093,775,037.17/175,139.25
  6. Step 6: Final answer
    x = 137,569.25

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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.