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Finding the Fourth Proportional to 264,320.69, 396,477.60 and 64,642.81

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Solution

The fourth proportional to 264,320.69, 396,477.60 and 64,642.81 is: 96,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,320.69 : 396,477.60 = 64,642.81 : x
  2. Step 2: Convert to fraction form
    264,320.69/396,477.60 = 64,642.81/x
  3. Step 3: Cross multiply
    264,320.69x = 396,477.60 × 64,642.81
  4. Step 4: Simplify right side
    264,320.69x = 25,629,425,336.47
  5. Step 5: Solve for x
    x = 25,629,425,336.47/264,320.69
  6. Step 6: Final answer
    x = 96,963.37

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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.