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Finding the Fourth Proportional to 61,159.08, 91,737.80 and 16,785.78

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Solution

The fourth proportional to 61,159.08, 91,737.80 and 16,785.78 is: 25,178.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.08 : 91,737.80 = 16,785.78 : x
  2. Step 2: Convert to fraction form
    61,159.08/91,737.80 = 16,785.78/x
  3. Step 3: Cross multiply
    61,159.08x = 91,737.80 × 16,785.78
  4. Step 4: Simplify right side
    61,159.08x = 1,539,890,528.48
  5. Step 5: Solve for x
    x = 1,539,890,528.48/61,159.08
  6. Step 6: Final answer
    x = 25,178.44

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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.