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Finding the Fourth Proportional to 99,894.98, 149,807.36 and 28,798.64

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Solution

The fourth proportional to 99,894.98, 149,807.36 and 28,798.64 is: 43,187.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,894.98 : 149,807.36 = 28,798.64 : x
  2. Step 2: Convert to fraction form
    99,894.98/149,807.36 = 28,798.64/x
  3. Step 3: Cross multiply
    99,894.98x = 149,807.36 × 28,798.64
  4. Step 4: Simplify right side
    99,894.98x = 4,314,248,229.99
  5. Step 5: Solve for x
    x = 4,314,248,229.99/99,894.98
  6. Step 6: Final answer
    x = 43,187.84

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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.