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Finding the Fourth Proportional to 112,955.69, 169,323.37 and 53,775.47

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Solution

The fourth proportional to 112,955.69, 169,323.37 and 53,775.47 is: 80,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,955.69 : 169,323.37 = 53,775.47 : x
  2. Step 2: Convert to fraction form
    112,955.69/169,323.37 = 53,775.47/x
  3. Step 3: Cross multiply
    112,955.69x = 169,323.37 × 53,775.47
  4. Step 4: Simplify right side
    112,955.69x = 9,105,442,822.68
  5. Step 5: Solve for x
    x = 9,105,442,822.68/112,955.69
  6. Step 6: Final answer
    x = 80,610.75

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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.