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Finding the Fourth Proportional to 330,331.95, 495,391.30 and 93,611.07

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Solution

The fourth proportional to 330,331.95, 495,391.30 and 93,611.07 is: 140,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,331.95 : 495,391.30 = 93,611.07 : x
  2. Step 2: Convert to fraction form
    330,331.95/495,391.30 = 93,611.07/x
  3. Step 3: Cross multiply
    330,331.95x = 495,391.30 × 93,611.07
  4. Step 4: Simplify right side
    330,331.95x = 46,374,109,661.69
  5. Step 5: Solve for x
    x = 46,374,109,661.69/330,331.95
  6. Step 6: Final answer
    x = 140,386.39

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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.