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Finding the Fourth Proportional to 158,428.80, 237,772.80 and 153,244.80

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Solution

The fourth proportional to 158,428.80, 237,772.80 and 153,244.80 is: 229,992.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,428.80 : 237,772.80 = 153,244.80 : x
  2. Step 2: Convert to fraction form
    158,428.80/237,772.80 = 153,244.80/x
  3. Step 3: Cross multiply
    158,428.80x = 237,772.80 × 153,244.80
  4. Step 4: Simplify right side
    158,428.80x = 36,437,445,181.44
  5. Step 5: Solve for x
    x = 36,437,445,181.44/158,428.80
  6. Step 6: Final answer
    x = 229,992.56

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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.