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Finding the Fourth Proportional to 84,340.98, 116,379.30 and 54,167.16

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Solution

The fourth proportional to 84,340.98, 116,379.30 and 54,167.16 is: 74,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,340.98 : 116,379.30 = 54,167.16 : x
  2. Step 2: Convert to fraction form
    84,340.98/116,379.30 = 54,167.16/x
  3. Step 3: Cross multiply
    84,340.98x = 116,379.30 × 54,167.16
  4. Step 4: Simplify right side
    84,340.98x = 6,303,936,163.79
  5. Step 5: Solve for x
    x = 6,303,936,163.79/84,340.98
  6. Step 6: Final answer
    x = 74,743.45

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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.