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Finding the Fourth Proportional to 159,439.30, 238,698.15 and 97,231.30

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Solution

The fourth proportional to 159,439.30, 238,698.15 and 97,231.30 is: 145,565.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,439.30 : 238,698.15 = 97,231.30 : x
  2. Step 2: Convert to fraction form
    159,439.30/238,698.15 = 97,231.30/x
  3. Step 3: Cross multiply
    159,439.30x = 238,698.15 × 97,231.30
  4. Step 4: Simplify right side
    159,439.30x = 23,208,931,432.10
  5. Step 5: Solve for x
    x = 23,208,931,432.10/159,439.30
  6. Step 6: Final answer
    x = 145,565.94

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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.