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Finding the Fourth Proportional to 330,564.50, 495,555.93 and 131,024.94

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Solution

The fourth proportional to 330,564.50, 495,555.93 and 131,024.94 is: 196,422.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,564.50 : 495,555.93 = 131,024.94 : x
  2. Step 2: Convert to fraction form
    330,564.50/495,555.93 = 131,024.94/x
  3. Step 3: Cross multiply
    330,564.50x = 495,555.93 × 131,024.94
  4. Step 4: Simplify right side
    330,564.50x = 64,930,185,994.89
  5. Step 5: Solve for x
    x = 64,930,185,994.89/330,564.50
  6. Step 6: Final answer
    x = 196,422.14

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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.