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Finding the Fourth Proportional to 608,813.80, 913,350.30 and 188,132.20

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Solution

The fourth proportional to 608,813.80, 913,350.30 and 188,132.20 is: 282,238.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,813.80 : 913,350.30 = 188,132.20 : x
  2. Step 2: Convert to fraction form
    608,813.80/913,350.30 = 188,132.20/x
  3. Step 3: Cross multiply
    608,813.80x = 913,350.30 × 188,132.20
  4. Step 4: Simplify right side
    608,813.80x = 171,830,601,309.66
  5. Step 5: Solve for x
    x = 171,830,601,309.66/608,813.80
  6. Step 6: Final answer
    x = 282,238.35

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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.