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Finding the Fourth Proportional to 340,064.92, 469,293.18 and 187,105.12

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Solution

The fourth proportional to 340,064.92, 469,293.18 and 187,105.12 is: 258,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,064.92 : 469,293.18 = 187,105.12 : x
  2. Step 2: Convert to fraction form
    340,064.92/469,293.18 = 187,105.12/x
  3. Step 3: Cross multiply
    340,064.92x = 469,293.18 × 187,105.12
  4. Step 4: Simplify right side
    340,064.92x = 87,807,156,759.08
  5. Step 5: Solve for x
    x = 87,807,156,759.08/340,064.92
  6. Step 6: Final answer
    x = 258,207.04

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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.