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Finding the Fourth Proportional to 220,846.40, 331,269.60 and 73,102.40

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Solution

The fourth proportional to 220,846.40, 331,269.60 and 73,102.40 is: 109,653.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,846.40 : 331,269.60 = 73,102.40 : x
  2. Step 2: Convert to fraction form
    220,846.40/331,269.60 = 73,102.40/x
  3. Step 3: Cross multiply
    220,846.40x = 331,269.60 × 73,102.40
  4. Step 4: Simplify right side
    220,846.40x = 24,216,602,807.04
  5. Step 5: Solve for x
    x = 24,216,602,807.04/220,846.40
  6. Step 6: Final answer
    x = 109,653.60

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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.