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Finding the Fourth Proportional to 330,496.65, 495,702.76 and 127,954.19

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Solution

The fourth proportional to 330,496.65, 495,702.76 and 127,954.19 is: 191,914.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,496.65 : 495,702.76 = 127,954.19 : x
  2. Step 2: Convert to fraction form
    330,496.65/495,702.76 = 127,954.19/x
  3. Step 3: Cross multiply
    330,496.65x = 495,702.76 × 127,954.19
  4. Step 4: Simplify right side
    330,496.65x = 63,427,247,200.98
  5. Step 5: Solve for x
    x = 63,427,247,200.98/330,496.65
  6. Step 6: Final answer
    x = 191,914.95

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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.