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Finding the Fourth Proportional to 608,842.20, 913,263.30 and 188,117.40

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Solution

The fourth proportional to 608,842.20, 913,263.30 and 188,117.40 is: 282,176.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,842.20 : 913,263.30 = 188,117.40 : x
  2. Step 2: Convert to fraction form
    608,842.20/913,263.30 = 188,117.40/x
  3. Step 3: Cross multiply
    608,842.20x = 913,263.30 × 188,117.40
  4. Step 4: Simplify right side
    608,842.20x = 171,800,717,511.42
  5. Step 5: Solve for x
    x = 171,800,717,511.42/608,842.20
  6. Step 6: Final answer
    x = 282,176.10

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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.