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Finding the Fourth Proportional to 111,309.84, 166,985.64 and 44,755.02

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Solution

The fourth proportional to 111,309.84, 166,985.64 and 44,755.02 is: 67,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,309.84 : 166,985.64 = 44,755.02 : x
  2. Step 2: Convert to fraction form
    111,309.84/166,985.64 = 44,755.02/x
  3. Step 3: Cross multiply
    111,309.84x = 166,985.64 × 44,755.02
  4. Step 4: Simplify right side
    111,309.84x = 7,473,445,657.91
  5. Step 5: Solve for x
    x = 7,473,445,657.91/111,309.84
  6. Step 6: Final answer
    x = 67,140.93

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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.