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Finding the Fourth Proportional to 56,670.40, 84,811.20 and 52,004.80

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Solution

The fourth proportional to 56,670.40, 84,811.20 and 52,004.80 is: 77,828.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,670.40 : 84,811.20 = 52,004.80 : x
  2. Step 2: Convert to fraction form
    56,670.40/84,811.20 = 52,004.80/x
  3. Step 3: Cross multiply
    56,670.40x = 84,811.20 × 52,004.80
  4. Step 4: Simplify right side
    56,670.40x = 4,410,589,493.76
  5. Step 5: Solve for x
    x = 4,410,589,493.76/56,670.40
  6. Step 6: Final answer
    x = 77,828.80

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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.