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Finding the Fourth Proportional to 356,199.98, 534,496.71 and 198,517.28

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Solution

The fourth proportional to 356,199.98, 534,496.71 and 198,517.28 is: 297,885.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,199.98 : 534,496.71 = 198,517.28 : x
  2. Step 2: Convert to fraction form
    356,199.98/534,496.71 = 198,517.28/x
  3. Step 3: Cross multiply
    356,199.98x = 534,496.71 × 198,517.28
  4. Step 4: Simplify right side
    356,199.98x = 106,106,833,038.15
  5. Step 5: Solve for x
    x = 106,106,833,038.15/356,199.98
  6. Step 6: Final answer
    x = 297,885.57

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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.