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Finding the Fourth Proportional to 73,267.70, 109,901.55 and 64,811.30

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Solution

The fourth proportional to 73,267.70, 109,901.55 and 64,811.30 is: 97,216.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,267.70 : 109,901.55 = 64,811.30 : x
  2. Step 2: Convert to fraction form
    73,267.70/109,901.55 = 64,811.30/x
  3. Step 3: Cross multiply
    73,267.70x = 109,901.55 × 64,811.30
  4. Step 4: Simplify right side
    73,267.70x = 7,122,862,327.52
  5. Step 5: Solve for x
    x = 7,122,862,327.52/73,267.70
  6. Step 6: Final answer
    x = 97,216.95

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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.