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Finding the Fourth Proportional to 157,438.60, 236,230.80 and 82,643.20

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Solution

The fourth proportional to 157,438.60, 236,230.80 and 82,643.20 is: 124,003.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,438.60 : 236,230.80 = 82,643.20 : x
  2. Step 2: Convert to fraction form
    157,438.60/236,230.80 = 82,643.20/x
  3. Step 3: Cross multiply
    157,438.60x = 236,230.80 × 82,643.20
  4. Step 4: Simplify right side
    157,438.60x = 19,522,869,250.56
  5. Step 5: Solve for x
    x = 19,522,869,250.56/157,438.60
  6. Step 6: Final answer
    x = 124,003.07

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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.