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Finding the Fourth Proportional to 130,483.40, 195,801.90 and 47,366.60

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Solution

The fourth proportional to 130,483.40, 195,801.90 and 47,366.60 is: 71,077.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,483.40 : 195,801.90 = 47,366.60 : x
  2. Step 2: Convert to fraction form
    130,483.40/195,801.90 = 47,366.60/x
  3. Step 3: Cross multiply
    130,483.40x = 195,801.90 × 47,366.60
  4. Step 4: Simplify right side
    130,483.40x = 9,274,470,276.54
  5. Step 5: Solve for x
    x = 9,274,470,276.54/130,483.40
  6. Step 6: Final answer
    x = 71,077.78

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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.