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Finding the Fourth Proportional to 231,243.40, 346,800.30 and 73,520.20

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Solution

The fourth proportional to 231,243.40, 346,800.30 and 73,520.20 is: 110,259.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,243.40 : 346,800.30 = 73,520.20 : x
  2. Step 2: Convert to fraction form
    231,243.40/346,800.30 = 73,520.20/x
  3. Step 3: Cross multiply
    231,243.40x = 346,800.30 × 73,520.20
  4. Step 4: Simplify right side
    231,243.40x = 25,496,827,416.06
  5. Step 5: Solve for x
    x = 25,496,827,416.06/231,243.40
  6. Step 6: Final answer
    x = 110,259.70

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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.