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Finding the Fourth Proportional to 157,086.20, 235,629.30 and 154,753.40

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Solution

The fourth proportional to 157,086.20, 235,629.30 and 154,753.40 is: 232,130.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,086.20 : 235,629.30 = 154,753.40 : x
  2. Step 2: Convert to fraction form
    157,086.20/235,629.30 = 154,753.40/x
  3. Step 3: Cross multiply
    157,086.20x = 235,629.30 × 154,753.40
  4. Step 4: Simplify right side
    157,086.20x = 36,464,435,314.62
  5. Step 5: Solve for x
    x = 36,464,435,314.62/157,086.20
  6. Step 6: Final answer
    x = 232,130.10

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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.