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Finding the Fourth Proportional to 61,167.52, 91,740.90 and 16,783.91

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Solution

The fourth proportional to 61,167.52, 91,740.90 and 16,783.91 is: 25,173.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,167.52 : 91,740.90 = 16,783.91 : x
  2. Step 2: Convert to fraction form
    61,167.52/91,740.90 = 16,783.91/x
  3. Step 3: Cross multiply
    61,167.52x = 91,740.90 × 16,783.91
  4. Step 4: Simplify right side
    61,167.52x = 1,539,770,957.18
  5. Step 5: Solve for x
    x = 1,539,770,957.18/61,167.52
  6. Step 6: Final answer
    x = 25,173.02

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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.