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Finding the Fourth Proportional to 61,154.48, 91,734.46 and 16,780.26

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Solution

The fourth proportional to 61,154.48, 91,734.46 and 16,780.26 is: 25,171.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,154.48 : 91,734.46 = 16,780.26 : x
  2. Step 2: Convert to fraction form
    61,154.48/91,734.46 = 16,780.26/x
  3. Step 3: Cross multiply
    61,154.48x = 91,734.46 × 16,780.26
  4. Step 4: Simplify right side
    61,154.48x = 1,539,328,089.76
  5. Step 5: Solve for x
    x = 1,539,328,089.76/61,154.48
  6. Step 6: Final answer
    x = 25,171.14

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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.