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Finding the Fourth Proportional to 56,410.84, 77,843.46 and 31,260.52

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Solution

The fourth proportional to 56,410.84, 77,843.46 and 31,260.52 is: 43,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,410.84 : 77,843.46 = 31,260.52 : x
  2. Step 2: Convert to fraction form
    56,410.84/77,843.46 = 31,260.52/x
  3. Step 3: Cross multiply
    56,410.84x = 77,843.46 × 31,260.52
  4. Step 4: Simplify right side
    56,410.84x = 2,433,427,038.20
  5. Step 5: Solve for x
    x = 2,433,427,038.20/56,410.84
  6. Step 6: Final answer
    x = 43,137.58

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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.