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Finding the Fourth Proportional to 198,236.88, 297,130.68 and 98,466.48

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Solution

The fourth proportional to 198,236.88, 297,130.68 and 98,466.48 is: 147,588.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,236.88 : 297,130.68 = 98,466.48 : x
  2. Step 2: Convert to fraction form
    198,236.88/297,130.68 = 98,466.48/x
  3. Step 3: Cross multiply
    198,236.88x = 297,130.68 × 98,466.48
  4. Step 4: Simplify right side
    198,236.88x = 29,257,412,159.61
  5. Step 5: Solve for x
    x = 29,257,412,159.61/198,236.88
  6. Step 6: Final answer
    x = 147,588.14

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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.