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Finding the Fourth Proportional to 56,433.60, 84,747.60 and 36,799.20

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Solution

The fourth proportional to 56,433.60, 84,747.60 and 36,799.20 is: 55,262.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,433.60 : 84,747.60 = 36,799.20 : x
  2. Step 2: Convert to fraction form
    56,433.60/84,747.60 = 36,799.20/x
  3. Step 3: Cross multiply
    56,433.60x = 84,747.60 × 36,799.20
  4. Step 4: Simplify right side
    56,433.60x = 3,118,643,881.92
  5. Step 5: Solve for x
    x = 3,118,643,881.92/56,433.60
  6. Step 6: Final answer
    x = 55,262.18

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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.