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Finding the Fourth Proportional to 353,230.81, 528,687.91 and 193,061.41

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Solution

The fourth proportional to 353,230.81, 528,687.91 and 193,061.41 is: 288,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,230.81 : 528,687.91 = 193,061.41 : x
  2. Step 2: Convert to fraction form
    353,230.81/528,687.91 = 193,061.41/x
  3. Step 3: Cross multiply
    353,230.81x = 528,687.91 × 193,061.41
  4. Step 4: Simplify right side
    353,230.81x = 102,069,233,354.55
  5. Step 5: Solve for x
    x = 102,069,233,354.55/353,230.81
  6. Step 6: Final answer
    x = 288,959.03

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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.