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Finding the Fourth Proportional to 330,061.62, 495,118.59 and 93,405.78

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Solution

The fourth proportional to 330,061.62, 495,118.59 and 93,405.78 is: 140,116.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,061.62 : 495,118.59 = 93,405.78 : x
  2. Step 2: Convert to fraction form
    330,061.62/495,118.59 = 93,405.78/x
  3. Step 3: Cross multiply
    330,061.62x = 495,118.59 × 93,405.78
  4. Step 4: Simplify right side
    330,061.62x = 46,246,938,091.45
  5. Step 5: Solve for x
    x = 46,246,938,091.45/330,061.62
  6. Step 6: Final answer
    x = 140,116.07

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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.