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Finding the Fourth Proportional to 298,858.32, 448,353.08 and 88,512.72

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Solution

The fourth proportional to 298,858.32, 448,353.08 and 88,512.72 is: 132,788.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,858.32 : 448,353.08 = 88,512.72 : x
  2. Step 2: Convert to fraction form
    298,858.32/448,353.08 = 88,512.72/x
  3. Step 3: Cross multiply
    298,858.32x = 448,353.08 × 88,512.72
  4. Step 4: Simplify right side
    298,858.32x = 39,684,950,631.18
  5. Step 5: Solve for x
    x = 39,684,950,631.18/298,858.32
  6. Step 6: Final answer
    x = 132,788.51

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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.