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Finding the Fourth Proportional to 211,586.00, 317,399.45 and 61,822.87

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Solution

The fourth proportional to 211,586.00, 317,399.45 and 61,822.87 is: 92,740.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,586.00 : 317,399.45 = 61,822.87 : x
  2. Step 2: Convert to fraction form
    211,586.00/317,399.45 = 61,822.87/x
  3. Step 3: Cross multiply
    211,586.00x = 317,399.45 × 61,822.87
  4. Step 4: Simplify right side
    211,586.00x = 19,622,543,832.81
  5. Step 5: Solve for x
    x = 19,622,543,832.81/211,586.00
  6. Step 6: Final answer
    x = 92,740.28

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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.