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Finding the Fourth Proportional to 330,553, 495,632.30 and 130,902.04

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Solution

The fourth proportional to 330,553, 495,632.30 and 130,902.04 is: 196,274.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,553 : 495,632.30 = 130,902.04 : x
  2. Step 2: Convert to fraction form
    330,553/495,632.30 = 130,902.04/x
  3. Step 3: Cross multiply
    330,553x = 495,632.30 × 130,902.04
  4. Step 4: Simplify right side
    330,553x = 64,879,279,159.89
  5. Step 5: Solve for x
    x = 64,879,279,159.89/330,553
  6. Step 6: Final answer
    x = 196,274.97

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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.