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Finding the Fourth Proportional to 219,672.89, 329,444.73 and 93,312.13

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Solution

The fourth proportional to 219,672.89, 329,444.73 and 93,312.13 is: 139,940.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,672.89 : 329,444.73 = 93,312.13 : x
  2. Step 2: Convert to fraction form
    219,672.89/329,444.73 = 93,312.13/x
  3. Step 3: Cross multiply
    219,672.89x = 329,444.73 × 93,312.13
  4. Step 4: Simplify right side
    219,672.89x = 30,741,189,473.57
  5. Step 5: Solve for x
    x = 30,741,189,473.57/219,672.89
  6. Step 6: Final answer
    x = 139,940.75

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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.