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Finding the Fourth Proportional to 490,693.05, 736,037.15 and 130,863.11

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Solution

The fourth proportional to 490,693.05, 736,037.15 and 130,863.11 is: 196,294.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,693.05 : 736,037.15 = 130,863.11 : x
  2. Step 2: Convert to fraction form
    490,693.05/736,037.15 = 130,863.11/x
  3. Step 3: Cross multiply
    490,693.05x = 736,037.15 × 130,863.11
  4. Step 4: Simplify right side
    490,693.05x = 96,320,106,190.04
  5. Step 5: Solve for x
    x = 96,320,106,190.04/490,693.05
  6. Step 6: Final answer
    x = 196,294.01

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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.