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Finding the Fourth Proportional to 86,680.88, 130,055.81 and 33,358.54

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Solution

The fourth proportional to 86,680.88, 130,055.81 and 33,358.54 is: 50,051.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,680.88 : 130,055.81 = 33,358.54 : x
  2. Step 2: Convert to fraction form
    86,680.88/130,055.81 = 33,358.54/x
  3. Step 3: Cross multiply
    86,680.88x = 130,055.81 × 33,358.54
  4. Step 4: Simplify right side
    86,680.88x = 4,338,471,448.19
  5. Step 5: Solve for x
    x = 4,338,471,448.19/86,680.88
  6. Step 6: Final answer
    x = 50,051.08

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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.