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Finding the Fourth Proportional to 198,762.88, 298,041.60 and 58,503.36

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Solution

The fourth proportional to 198,762.88, 298,041.60 and 58,503.36 is: 87,724.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,762.88 : 298,041.60 = 58,503.36 : x
  2. Step 2: Convert to fraction form
    198,762.88/298,041.60 = 58,503.36/x
  3. Step 3: Cross multiply
    198,762.88x = 298,041.60 × 58,503.36
  4. Step 4: Simplify right side
    198,762.88x = 17,436,435,019.78
  5. Step 5: Solve for x
    x = 17,436,435,019.78/198,762.88
  6. Step 6: Final answer
    x = 87,724.81

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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.