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Finding the Fourth Proportional to 211,114.68, 316,692.80 and 61,356.27

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Solution

The fourth proportional to 211,114.68, 316,692.80 and 61,356.27 is: 92,040.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,114.68 : 316,692.80 = 61,356.27 : x
  2. Step 2: Convert to fraction form
    211,114.68/316,692.80 = 61,356.27/x
  3. Step 3: Cross multiply
    211,114.68x = 316,692.80 × 61,356.27
  4. Step 4: Simplify right side
    211,114.68x = 19,431,088,943.86
  5. Step 5: Solve for x
    x = 19,431,088,943.86/211,114.68
  6. Step 6: Final answer
    x = 92,040.44

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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.