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Finding the Fourth Proportional to 55,795.80, 83,693.70 and 51,859.20

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Solution

The fourth proportional to 55,795.80, 83,693.70 and 51,859.20 is: 77,788.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,795.80 : 83,693.70 = 51,859.20 : x
  2. Step 2: Convert to fraction form
    55,795.80/83,693.70 = 51,859.20/x
  3. Step 3: Cross multiply
    55,795.80x = 83,693.70 × 51,859.20
  4. Step 4: Simplify right side
    55,795.80x = 4,340,288,327.04
  5. Step 5: Solve for x
    x = 4,340,288,327.04/55,795.80
  6. Step 6: Final answer
    x = 77,788.80

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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.