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Finding the Fourth Proportional to 75,532, 104,162.64 and 55,095.52

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Solution

The fourth proportional to 75,532, 104,162.64 and 55,095.52 is: 75,979.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,532 : 104,162.64 = 55,095.52 : x
  2. Step 2: Convert to fraction form
    75,532/104,162.64 = 55,095.52/x
  3. Step 3: Cross multiply
    75,532x = 104,162.64 × 55,095.52
  4. Step 4: Simplify right side
    75,532x = 5,738,894,815.37
  5. Step 5: Solve for x
    x = 5,738,894,815.37/75,532
  6. Step 6: Final answer
    x = 75,979.65

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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.