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Finding the Fourth Proportional to 158,990.85, 238,486.38 and 59,138.10

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Solution

The fourth proportional to 158,990.85, 238,486.38 and 59,138.10 is: 88,707.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,990.85 : 238,486.38 = 59,138.10 : x
  2. Step 2: Convert to fraction form
    158,990.85/238,486.38 = 59,138.10/x
  3. Step 3: Cross multiply
    158,990.85x = 238,486.38 × 59,138.10
  4. Step 4: Simplify right side
    158,990.85x = 14,103,631,167.31
  5. Step 5: Solve for x
    x = 14,103,631,167.31/158,990.85
  6. Step 6: Final answer
    x = 88,707.19

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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.