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Finding the Fourth Proportional to 198,700.94, 274,929.35 and 173,260.35

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Solution

The fourth proportional to 198,700.94, 274,929.35 and 173,260.35 is: 239,728.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,700.94 : 274,929.35 = 173,260.35 : x
  2. Step 2: Convert to fraction form
    198,700.94/274,929.35 = 173,260.35/x
  3. Step 3: Cross multiply
    198,700.94x = 274,929.35 × 173,260.35
  4. Step 4: Simplify right side
    198,700.94x = 47,634,354,539.97
  5. Step 5: Solve for x
    x = 47,634,354,539.97/198,700.94
  6. Step 6: Final answer
    x = 239,728.89

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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.