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Finding the Fourth Proportional to 56,928,213.11, 85,392,319.67 and 13,797,416.54

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Solution

The fourth proportional to 56,928,213.11, 85,392,319.67 and 13,797,416.54 is: 20,696,124.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,928,213.11 : 85,392,319.67 = 13,797,416.54 : x
  2. Step 2: Convert to fraction form
    56,928,213.11/85,392,319.67 = 13,797,416.54/x
  3. Step 3: Cross multiply
    56,928,213.11x = 85,392,319.67 × 13,797,416.54
  4. Step 4: Simplify right side
    56,928,213.11x = 1,178,193,404,000,059.50
  5. Step 5: Solve for x
    x = 1,178,193,404,000,059.50/56,928,213.11
  6. Step 6: Final answer
    x = 20,696,124.81

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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.