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Finding the Fourth Proportional to 221,236.40, 331,854.60 and 73,492.40

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Solution

The fourth proportional to 221,236.40, 331,854.60 and 73,492.40 is: 110,238.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,236.40 : 331,854.60 = 73,492.40 : x
  2. Step 2: Convert to fraction form
    221,236.40/331,854.60 = 73,492.40/x
  3. Step 3: Cross multiply
    221,236.40x = 331,854.60 × 73,492.40
  4. Step 4: Simplify right side
    221,236.40x = 24,388,791,005.04
  5. Step 5: Solve for x
    x = 24,388,791,005.04/221,236.40
  6. Step 6: Final answer
    x = 110,238.60

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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.