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Finding the Fourth Proportional to 55,141.60, 82,712.40 and 37,645.60

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Solution

The fourth proportional to 55,141.60, 82,712.40 and 37,645.60 is: 56,468.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,141.60 : 82,712.40 = 37,645.60 : x
  2. Step 2: Convert to fraction form
    55,141.60/82,712.40 = 37,645.60/x
  3. Step 3: Cross multiply
    55,141.60x = 82,712.40 × 37,645.60
  4. Step 4: Simplify right side
    55,141.60x = 3,113,757,925.44
  5. Step 5: Solve for x
    x = 3,113,757,925.44/55,141.60
  6. Step 6: Final answer
    x = 56,468.40

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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.