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Finding the Fourth Proportional to 608,873.70, 913,310.55 and 188,148.90

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Solution

The fourth proportional to 608,873.70, 913,310.55 and 188,148.90 is: 282,223.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,873.70 : 913,310.55 = 188,148.90 : x
  2. Step 2: Convert to fraction form
    608,873.70/913,310.55 = 188,148.90/x
  3. Step 3: Cross multiply
    608,873.70x = 913,310.55 × 188,148.90
  4. Step 4: Simplify right side
    608,873.70x = 171,838,375,340.90
  5. Step 5: Solve for x
    x = 171,838,375,340.90/608,873.70
  6. Step 6: Final answer
    x = 282,223.35

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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.