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Finding the Fourth Proportional to 57,703.20, 86,554.80 and 49,246.80

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Solution

The fourth proportional to 57,703.20, 86,554.80 and 49,246.80 is: 73,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,703.20 : 86,554.80 = 49,246.80 : x
  2. Step 2: Convert to fraction form
    57,703.20/86,554.80 = 49,246.80/x
  3. Step 3: Cross multiply
    57,703.20x = 86,554.80 × 49,246.80
  4. Step 4: Simplify right side
    57,703.20x = 4,262,546,924.64
  5. Step 5: Solve for x
    x = 4,262,546,924.64/57,703.20
  6. Step 6: Final answer
    x = 73,870.20

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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.