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Finding the Fourth Proportional to 310,488.04, 465,912.81 and 130,560.46

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Solution

The fourth proportional to 310,488.04, 465,912.81 and 130,560.46 is: 195,916.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,488.04 : 465,912.81 = 130,560.46 : x
  2. Step 2: Convert to fraction form
    310,488.04/465,912.81 = 130,560.46/x
  3. Step 3: Cross multiply
    310,488.04x = 465,912.81 × 130,560.46
  4. Step 4: Simplify right side
    310,488.04x = 60,829,790,793.49
  5. Step 5: Solve for x
    x = 60,829,790,793.49/310,488.04
  6. Step 6: Final answer
    x = 195,916.70

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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.