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Finding the Fourth Proportional to 198,527.50, 297,717.81 and 65,368.90

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Solution

The fourth proportional to 198,527.50, 297,717.81 and 65,368.90 is: 98,029.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,527.50 : 297,717.81 = 65,368.90 : x
  2. Step 2: Convert to fraction form
    198,527.50/297,717.81 = 65,368.90/x
  3. Step 3: Cross multiply
    198,527.50x = 297,717.81 × 65,368.90
  4. Step 4: Simplify right side
    198,527.50x = 19,461,485,750.11
  5. Step 5: Solve for x
    x = 19,461,485,750.11/198,527.50
  6. Step 6: Final answer
    x = 98,029.17

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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.