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Finding the Fourth Proportional to 99,042.32, 148,607.04 and 39,993.32

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Solution

The fourth proportional to 99,042.32, 148,607.04 and 39,993.32 is: 60,007.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,042.32 : 148,607.04 = 39,993.32 : x
  2. Step 2: Convert to fraction form
    99,042.32/148,607.04 = 39,993.32/x
  3. Step 3: Cross multiply
    99,042.32x = 148,607.04 × 39,993.32
  4. Step 4: Simplify right side
    99,042.32x = 5,943,288,904.97
  5. Step 5: Solve for x
    x = 5,943,288,904.97/99,042.32
  6. Step 6: Final answer
    x = 60,007.57

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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.