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Finding the Fourth Proportional to 61,212.68, 91,732.80 and 48,677.08

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Solution

The fourth proportional to 61,212.68, 91,732.80 and 48,677.08 is: 72,947.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,212.68 : 91,732.80 = 48,677.08 : x
  2. Step 2: Convert to fraction form
    61,212.68/91,732.80 = 48,677.08/x
  3. Step 3: Cross multiply
    61,212.68x = 91,732.80 × 48,677.08
  4. Step 4: Simplify right side
    61,212.68x = 4,465,284,844.22
  5. Step 5: Solve for x
    x = 4,465,284,844.22/61,212.68
  6. Step 6: Final answer
    x = 72,947.06

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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.