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Finding the Fourth Proportional to 245,991.12, 369,103.32 and 146,348.16

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Solution

The fourth proportional to 245,991.12, 369,103.32 and 146,348.16 is: 219,591.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,991.12 : 369,103.32 = 146,348.16 : x
  2. Step 2: Convert to fraction form
    245,991.12/369,103.32 = 146,348.16/x
  3. Step 3: Cross multiply
    245,991.12x = 369,103.32 × 146,348.16
  4. Step 4: Simplify right side
    245,991.12x = 54,017,591,731.89
  5. Step 5: Solve for x
    x = 54,017,591,731.89/245,991.12
  6. Step 6: Final answer
    x = 219,591.63

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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.