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Finding the Fourth Proportional to 608,734.80, 913,231.80 and 188,053.20

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Solution

The fourth proportional to 608,734.80, 913,231.80 and 188,053.20 is: 282,119.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,734.80 : 913,231.80 = 188,053.20 : x
  2. Step 2: Convert to fraction form
    608,734.80/913,231.80 = 188,053.20/x
  3. Step 3: Cross multiply
    608,734.80x = 913,231.80 × 188,053.20
  4. Step 4: Simplify right side
    608,734.80x = 171,736,162,331.76
  5. Step 5: Solve for x
    x = 171,736,162,331.76/608,734.80
  6. Step 6: Final answer
    x = 282,119.84

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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.