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Finding the Fourth Proportional to 207,704.00, 311,528.26 and 57,931.76

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Solution

The fourth proportional to 207,704.00, 311,528.26 and 57,931.76 is: 86,889.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,704.00 : 311,528.26 = 57,931.76 : x
  2. Step 2: Convert to fraction form
    207,704.00/311,528.26 = 57,931.76/x
  3. Step 3: Cross multiply
    207,704.00x = 311,528.26 × 57,931.76
  4. Step 4: Simplify right side
    207,704.00x = 18,047,381,242.77
  5. Step 5: Solve for x
    x = 18,047,381,242.77/207,704.00
  6. Step 6: Final answer
    x = 86,889.91

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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.