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Finding the Fourth Proportional to 73,091, 109,319.79 and 43,033.64

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Solution

The fourth proportional to 73,091, 109,319.79 and 43,033.64 is: 64,363.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,091 : 109,319.79 = 43,033.64 : x
  2. Step 2: Convert to fraction form
    73,091/109,319.79 = 43,033.64/x
  3. Step 3: Cross multiply
    73,091x = 109,319.79 × 43,033.64
  4. Step 4: Simplify right side
    73,091x = 4,704,427,941.14
  5. Step 5: Solve for x
    x = 4,704,427,941.14/73,091
  6. Step 6: Final answer
    x = 64,363.98

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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.