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Finding the Fourth Proportional to 52,404.40, 78,491.40 and 51,252.40

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Solution

The fourth proportional to 52,404.40, 78,491.40 and 51,252.40 is: 76,765.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,404.40 : 78,491.40 = 51,252.40 : x
  2. Step 2: Convert to fraction form
    52,404.40/78,491.40 = 51,252.40/x
  3. Step 3: Cross multiply
    52,404.40x = 78,491.40 × 51,252.40
  4. Step 4: Simplify right side
    52,404.40x = 4,022,872,629.36
  5. Step 5: Solve for x
    x = 4,022,872,629.36/52,404.40
  6. Step 6: Final answer
    x = 76,765.93

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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.