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Finding the Fourth Proportional to 99,295.64, 148,859.80 and 43,093.43

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Solution

The fourth proportional to 99,295.64, 148,859.80 and 43,093.43 is: 64,603.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,295.64 : 148,859.80 = 43,093.43 : x
  2. Step 2: Convert to fraction form
    99,295.64/148,859.80 = 43,093.43/x
  3. Step 3: Cross multiply
    99,295.64x = 148,859.80 × 43,093.43
  4. Step 4: Simplify right side
    99,295.64x = 6,414,879,371.11
  5. Step 5: Solve for x
    x = 6,414,879,371.11/99,295.64
  6. Step 6: Final answer
    x = 64,603.84

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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.