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Finding the Fourth Proportional to 99,886.37, 149,807.07 and 28,793.68

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Solution

The fourth proportional to 99,886.37, 149,807.07 and 28,793.68 is: 43,184.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,886.37 : 149,807.07 = 28,793.68 : x
  2. Step 2: Convert to fraction form
    99,886.37/149,807.07 = 28,793.68/x
  3. Step 3: Cross multiply
    99,886.37x = 149,807.07 × 28,793.68
  4. Step 4: Simplify right side
    99,886.37x = 4,313,496,460.80
  5. Step 5: Solve for x
    x = 4,313,496,460.80/99,886.37
  6. Step 6: Final answer
    x = 43,184.04

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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.