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Finding the Fourth Proportional to 99,552.36, 149,346.95 and 28,471.98

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Solution

The fourth proportional to 99,552.36, 149,346.95 and 28,471.98 is: 42,713.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,552.36 : 149,346.95 = 28,471.98 : x
  2. Step 2: Convert to fraction form
    99,552.36/149,346.95 = 28,471.98/x
  3. Step 3: Cross multiply
    99,552.36x = 149,346.95 × 28,471.98
  4. Step 4: Simplify right side
    99,552.36x = 4,252,203,231.10
  5. Step 5: Solve for x
    x = 4,252,203,231.10/99,552.36
  6. Step 6: Final answer
    x = 42,713.23

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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.