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Finding the Fourth Proportional to 173,688, 239,689.44 and 98,234.88

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Solution

The fourth proportional to 173,688, 239,689.44 and 98,234.88 is: 135,564.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,688 : 239,689.44 = 98,234.88 : x
  2. Step 2: Convert to fraction form
    173,688/239,689.44 = 98,234.88/x
  3. Step 3: Cross multiply
    173,688x = 239,689.44 × 98,234.88
  4. Step 4: Simplify right side
    173,688x = 23,545,863,375.67
  5. Step 5: Solve for x
    x = 23,545,863,375.67/173,688
  6. Step 6: Final answer
    x = 135,564.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.