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Finding the Fourth Proportional to 99,104.52, 136,764.33 and 53,782.51

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Solution

The fourth proportional to 99,104.52, 136,764.33 and 53,782.51 is: 74,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,104.52 : 136,764.33 = 53,782.51 : x
  2. Step 2: Convert to fraction form
    99,104.52/136,764.33 = 53,782.51/x
  3. Step 3: Cross multiply
    99,104.52x = 136,764.33 × 53,782.51
  4. Step 4: Simplify right side
    99,104.52x = 7,355,527,993.13
  5. Step 5: Solve for x
    x = 7,355,527,993.13/99,104.52
  6. Step 6: Final answer
    x = 74,219.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.