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Finding the Fourth Proportional to 247,358.49, 341,354.82 and 139,926.23

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Solution

The fourth proportional to 247,358.49, 341,354.82 and 139,926.23 is: 193,098.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,358.49 : 341,354.82 = 139,926.23 : x
  2. Step 2: Convert to fraction form
    247,358.49/341,354.82 = 139,926.23/x
  3. Step 3: Cross multiply
    247,358.49x = 341,354.82 × 139,926.23
  4. Step 4: Simplify right side
    247,358.49x = 47,764,493,054.93
  5. Step 5: Solve for x
    x = 47,764,493,054.93/247,358.49
  6. Step 6: Final answer
    x = 193,098.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.