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Finding the Fourth Proportional to 330,486.75, 495,728.91 and 93,829.46

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Solution

The fourth proportional to 330,486.75, 495,728.91 and 93,829.46 is: 140,743.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,486.75 : 495,728.91 = 93,829.46 : x
  2. Step 2: Convert to fraction form
    330,486.75/495,728.91 = 93,829.46/x
  3. Step 3: Cross multiply
    330,486.75x = 495,728.91 × 93,829.46
  4. Step 4: Simplify right side
    330,486.75x = 46,513,973,453.04
  5. Step 5: Solve for x
    x = 46,513,973,453.04/330,486.75
  6. Step 6: Final answer
    x = 140,743.84

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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.