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Finding the Fourth Proportional to 247,216.68, 341,166.21 and 139,784.37

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Solution

The fourth proportional to 247,216.68, 341,166.21 and 139,784.37 is: 192,906.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,216.68 : 341,166.21 = 139,784.37 : x
  2. Step 2: Convert to fraction form
    247,216.68/341,166.21 = 139,784.37/x
  3. Step 3: Cross multiply
    247,216.68x = 341,166.21 × 139,784.37
  4. Step 4: Simplify right side
    247,216.68x = 47,689,703,730.14
  5. Step 5: Solve for x
    x = 47,689,703,730.14/247,216.68
  6. Step 6: Final answer
    x = 192,906.50

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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.