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Finding the Fourth Proportional to 173,392.32, 239,478.84 and 116,705.28

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Solution

The fourth proportional to 173,392.32, 239,478.84 and 116,705.28 is: 161,186.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,392.32 : 239,478.84 = 116,705.28 : x
  2. Step 2: Convert to fraction form
    173,392.32/239,478.84 = 116,705.28/x
  3. Step 3: Cross multiply
    173,392.32x = 239,478.84 × 116,705.28
  4. Step 4: Simplify right side
    173,392.32x = 27,948,445,076.28
  5. Step 5: Solve for x
    x = 27,948,445,076.28/173,392.32
  6. Step 6: Final answer
    x = 161,186.18

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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.