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Finding the Fourth Proportional to 173,219, 239,042.94 and 93,731

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Solution

The fourth proportional to 173,219, 239,042.94 and 93,731 is: 129,349.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,219 : 239,042.94 = 93,731 : x
  2. Step 2: Convert to fraction form
    173,219/239,042.94 = 93,731/x
  3. Step 3: Cross multiply
    173,219x = 239,042.94 × 93,731
  4. Step 4: Simplify right side
    173,219x = 22,405,733,809.14
  5. Step 5: Solve for x
    x = 22,405,733,809.14/173,219
  6. Step 6: Final answer
    x = 129,349.17

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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.