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Finding the Fourth Proportional to 56,898.63, 85,278.81 and 40,263.54

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Solution

The fourth proportional to 56,898.63, 85,278.81 and 40,263.54 is: 60,346.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,898.63 : 85,278.81 = 40,263.54 : x
  2. Step 2: Convert to fraction form
    56,898.63/85,278.81 = 40,263.54/x
  3. Step 3: Cross multiply
    56,898.63x = 85,278.81 × 40,263.54
  4. Step 4: Simplify right side
    56,898.63x = 3,433,626,777.59
  5. Step 5: Solve for x
    x = 3,433,626,777.59/56,898.63
  6. Step 6: Final answer
    x = 60,346.39

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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.