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Finding the Fourth Proportional to 349,764.48, 482,675.04 and 198,870.72

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Solution

The fourth proportional to 349,764.48, 482,675.04 and 198,870.72 is: 274,441.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,764.48 : 482,675.04 = 198,870.72 : x
  2. Step 2: Convert to fraction form
    349,764.48/482,675.04 = 198,870.72/x
  3. Step 3: Cross multiply
    349,764.48x = 482,675.04 × 198,870.72
  4. Step 4: Simplify right side
    349,764.48x = 95,989,932,730.83
  5. Step 5: Solve for x
    x = 95,989,932,730.83/349,764.48
  6. Step 6: Final answer
    x = 274,441.63

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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.