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Finding the Fourth Proportional to 137,703.84, 206,551.44 and 75,763.68

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Solution

The fourth proportional to 137,703.84, 206,551.44 and 75,763.68 is: 113,643.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,703.84 : 206,551.44 = 75,763.68 : x
  2. Step 2: Convert to fraction form
    137,703.84/206,551.44 = 75,763.68/x
  3. Step 3: Cross multiply
    137,703.84x = 206,551.44 × 75,763.68
  4. Step 4: Simplify right side
    137,703.84x = 15,649,097,203.70
  5. Step 5: Solve for x
    x = 15,649,097,203.70/137,703.84
  6. Step 6: Final answer
    x = 113,643.14

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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.