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Finding the Fourth Proportional to 490,759.66, 736,139.94 and 153,826.66

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Solution

The fourth proportional to 490,759.66, 736,139.94 and 153,826.66 is: 230,740.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,759.66 : 736,139.94 = 153,826.66 : x
  2. Step 2: Convert to fraction form
    490,759.66/736,139.94 = 153,826.66/x
  3. Step 3: Cross multiply
    490,759.66x = 736,139.94 × 153,826.66
  4. Step 4: Simplify right side
    490,759.66x = 113,237,948,262.80
  5. Step 5: Solve for x
    x = 113,237,948,262.80/490,759.66
  6. Step 6: Final answer
    x = 230,740.13

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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.