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Finding the Fourth Proportional to 96,588.64, 133,295.79 and 56,295.91

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Solution

The fourth proportional to 96,588.64, 133,295.79 and 56,295.91 is: 77,690.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,588.64 : 133,295.79 = 56,295.91 : x
  2. Step 2: Convert to fraction form
    96,588.64/133,295.79 = 56,295.91/x
  3. Step 3: Cross multiply
    96,588.64x = 133,295.79 × 56,295.91
  4. Step 4: Simplify right side
    96,588.64x = 7,504,007,515.74
  5. Step 5: Solve for x
    x = 7,504,007,515.74/96,588.64
  6. Step 6: Final answer
    x = 77,690.37

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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.