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Finding the Fourth Proportional to 77,167.65, 106,496.64 and 43,179.33

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Solution

The fourth proportional to 77,167.65, 106,496.64 and 43,179.33 is: 59,590.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,167.65 : 106,496.64 = 43,179.33 : x
  2. Step 2: Convert to fraction form
    77,167.65/106,496.64 = 43,179.33/x
  3. Step 3: Cross multiply
    77,167.65x = 106,496.64 × 43,179.33
  4. Step 4: Simplify right side
    77,167.65x = 4,598,453,562.45
  5. Step 5: Solve for x
    x = 4,598,453,562.45/77,167.65
  6. Step 6: Final answer
    x = 59,590.43

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1.5x scale

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.