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Finding the Fourth Proportional to 198,551.06, 297,863.50 and 65,440.67

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Solution

The fourth proportional to 198,551.06, 297,863.50 and 65,440.67 is: 98,173.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,551.06 : 297,863.50 = 65,440.67 : x
  2. Step 2: Convert to fraction form
    198,551.06/297,863.50 = 65,440.67/x
  3. Step 3: Cross multiply
    198,551.06x = 297,863.50 × 65,440.67
  4. Step 4: Simplify right side
    198,551.06x = 19,492,387,426.00
  5. Step 5: Solve for x
    x = 19,492,387,426.00/198,551.06
  6. Step 6: Final answer
    x = 98,173.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.