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Finding the Fourth Proportional to 330,212.70, 495,319.05 and 93,552.30

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Solution

The fourth proportional to 330,212.70, 495,319.05 and 93,552.30 is: 140,328.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,212.70 : 495,319.05 = 93,552.30 : x
  2. Step 2: Convert to fraction form
    330,212.70/495,319.05 = 93,552.30/x
  3. Step 3: Cross multiply
    330,212.70x = 495,319.05 × 93,552.30
  4. Step 4: Simplify right side
    330,212.70x = 46,338,236,361.32
  5. Step 5: Solve for x
    x = 46,338,236,361.32/330,212.70
  6. Step 6: Final answer
    x = 140,328.45

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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.