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Finding the Fourth Proportional to 231,044.40, 346,577.40 and 73,285.20

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Solution

The fourth proportional to 231,044.40, 346,577.40 and 73,285.20 is: 109,931.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,044.40 : 346,577.40 = 73,285.20 : x
  2. Step 2: Convert to fraction form
    231,044.40/346,577.40 = 73,285.20/x
  3. Step 3: Cross multiply
    231,044.40x = 346,577.40 × 73,285.20
  4. Step 4: Simplify right side
    231,044.40x = 25,398,994,074.48
  5. Step 5: Solve for x
    x = 25,398,994,074.48/231,044.40
  6. Step 6: Final answer
    x = 109,931.23

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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.