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Finding the Fourth Proportional to 159,312.10, 238,968.15 and 88,453.30

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Solution

The fourth proportional to 159,312.10, 238,968.15 and 88,453.30 is: 132,679.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,312.10 : 238,968.15 = 88,453.30 : x
  2. Step 2: Convert to fraction form
    159,312.10/238,968.15 = 88,453.30/x
  3. Step 3: Cross multiply
    159,312.10x = 238,968.15 × 88,453.30
  4. Step 4: Simplify right side
    159,312.10x = 21,137,521,462.40
  5. Step 5: Solve for x
    x = 21,137,521,462.40/159,312.10
  6. Step 6: Final answer
    x = 132,679.95

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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.