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Finding the Fourth Proportional to 173,863.11, 239,914.95 and 98,411.61

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Solution

The fourth proportional to 173,863.11, 239,914.95 and 98,411.61 is: 135,798.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,863.11 : 239,914.95 = 98,411.61 : x
  2. Step 2: Convert to fraction form
    173,863.11/239,914.95 = 98,411.61/x
  3. Step 3: Cross multiply
    173,863.11x = 239,914.95 × 98,411.61
  4. Step 4: Simplify right side
    173,863.11x = 23,610,416,492.57
  5. Step 5: Solve for x
    x = 23,610,416,492.57/173,863.11
  6. Step 6: Final answer
    x = 135,798.89

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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.