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Finding the Fourth Proportional to 61,524.45, 84,904.14 and 36,045.90

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Solution

The fourth proportional to 61,524.45, 84,904.14 and 36,045.90 is: 49,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,524.45 : 84,904.14 = 36,045.90 : x
  2. Step 2: Convert to fraction form
    61,524.45/84,904.14 = 36,045.90/x
  3. Step 3: Cross multiply
    61,524.45x = 84,904.14 × 36,045.90
  4. Step 4: Simplify right side
    61,524.45x = 3,060,446,140.03
  5. Step 5: Solve for x
    x = 3,060,446,140.03/61,524.45
  6. Step 6: Final answer
    x = 49,743.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.