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Finding the Fourth Proportional to 85,794.87, 118,293.98 and 73,837.65

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Solution

The fourth proportional to 85,794.87, 118,293.98 and 73,837.65 is: 101,807.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,794.87 : 118,293.98 = 73,837.65 : x
  2. Step 2: Convert to fraction form
    85,794.87/118,293.98 = 73,837.65/x
  3. Step 3: Cross multiply
    85,794.87x = 118,293.98 × 73,837.65
  4. Step 4: Simplify right side
    85,794.87x = 8,734,549,123.16
  5. Step 5: Solve for x
    x = 8,734,549,123.16/85,794.87
  6. Step 6: Final answer
    x = 101,807.36

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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.