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Finding the Fourth Proportional to 572,401.92, 858,420.55 and 188,061.54

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Solution

The fourth proportional to 572,401.92, 858,420.55 and 188,061.54 is: 282,032.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,401.92 : 858,420.55 = 188,061.54 : x
  2. Step 2: Convert to fraction form
    572,401.92/858,420.55 = 188,061.54/x
  3. Step 3: Cross multiply
    572,401.92x = 858,420.55 × 188,061.54
  4. Step 4: Simplify right side
    572,401.92x = 161,435,890,600.65
  5. Step 5: Solve for x
    x = 161,435,890,600.65/572,401.92
  6. Step 6: Final answer
    x = 282,032.41

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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.