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Finding the Fourth Proportional to 330,290.81, 495,436.21 and 93,635.54

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Solution

The fourth proportional to 330,290.81, 495,436.21 and 93,635.54 is: 140,453.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,290.81 : 495,436.21 = 93,635.54 : x
  2. Step 2: Convert to fraction form
    330,290.81/495,436.21 = 93,635.54/x
  3. Step 3: Cross multiply
    330,290.81x = 495,436.21 × 93,635.54
  4. Step 4: Simplify right side
    330,290.81x = 46,390,437,058.90
  5. Step 5: Solve for x
    x = 46,390,437,058.90/330,290.81
  6. Step 6: Final answer
    x = 140,453.31

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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.