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Finding the Fourth Proportional to 331,360.40, 497,040.60 and 109,744.40

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Solution

The fourth proportional to 331,360.40, 497,040.60 and 109,744.40 is: 164,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,360.40 : 497,040.60 = 109,744.40 : x
  2. Step 2: Convert to fraction form
    331,360.40/497,040.60 = 109,744.40/x
  3. Step 3: Cross multiply
    331,360.40x = 497,040.60 × 109,744.40
  4. Step 4: Simplify right side
    331,360.40x = 54,547,422,422.64
  5. Step 5: Solve for x
    x = 54,547,422,422.64/331,360.40
  6. Step 6: Final answer
    x = 164,616.60

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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.