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Finding the Fourth Proportional to 173,787.12, 239,831.28 and 98,334

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Solution

The fourth proportional to 173,787.12, 239,831.28 and 98,334 is: 135,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,787.12 : 239,831.28 = 98,334 : x
  2. Step 2: Convert to fraction form
    173,787.12/239,831.28 = 98,334/x
  3. Step 3: Cross multiply
    173,787.12x = 239,831.28 × 98,334
  4. Step 4: Simplify right side
    173,787.12x = 23,583,569,087.52
  5. Step 5: Solve for x
    x = 23,583,569,087.52/173,787.12
  6. Step 6: Final answer
    x = 135,703.78

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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.