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Finding the Fourth Proportional to 118,804.77, 163,819.24 and 75,716.07

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Solution

The fourth proportional to 118,804.77, 163,819.24 and 75,716.07 is: 104,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,804.77 : 163,819.24 = 75,716.07 : x
  2. Step 2: Convert to fraction form
    118,804.77/163,819.24 = 75,716.07/x
  3. Step 3: Cross multiply
    118,804.77x = 163,819.24 × 75,716.07
  4. Step 4: Simplify right side
    118,804.77x = 12,403,749,043.19
  5. Step 5: Solve for x
    x = 12,403,749,043.19/118,804.77
  6. Step 6: Final answer
    x = 104,404.47

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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.