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Finding the Fourth Proportional to 73,205.70, 109,808.55 and 57,459.30

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Solution

The fourth proportional to 73,205.70, 109,808.55 and 57,459.30 is: 86,188.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,205.70 : 109,808.55 = 57,459.30 : x
  2. Step 2: Convert to fraction form
    73,205.70/109,808.55 = 57,459.30/x
  3. Step 3: Cross multiply
    73,205.70x = 109,808.55 × 57,459.30
  4. Step 4: Simplify right side
    73,205.70x = 6,309,522,417.02
  5. Step 5: Solve for x
    x = 6,309,522,417.02/73,205.70
  6. Step 6: Final answer
    x = 86,188.95

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1.5x scale

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.