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Finding the Fourth Proportional to 159,316.90, 238,975.35 and 48,508.90

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Solution

The fourth proportional to 159,316.90, 238,975.35 and 48,508.90 is: 72,763.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,316.90 : 238,975.35 = 48,508.90 : x
  2. Step 2: Convert to fraction form
    159,316.90/238,975.35 = 48,508.90/x
  3. Step 3: Cross multiply
    159,316.90x = 238,975.35 × 48,508.90
  4. Step 4: Simplify right side
    159,316.90x = 11,592,431,355.62
  5. Step 5: Solve for x
    x = 11,592,431,355.62/159,316.90
  6. Step 6: Final answer
    x = 72,763.35

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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.