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Finding the Fourth Proportional to 338,785.26, 508,233.15 and 139,052.04

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Solution

The fourth proportional to 338,785.26, 508,233.15 and 139,052.04 is: 208,600.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,785.26 : 508,233.15 = 139,052.04 : x
  2. Step 2: Convert to fraction form
    338,785.26/508,233.15 = 139,052.04/x
  3. Step 3: Cross multiply
    338,785.26x = 508,233.15 × 139,052.04
  4. Step 4: Simplify right side
    338,785.26x = 70,670,856,303.13
  5. Step 5: Solve for x
    x = 70,670,856,303.13/338,785.26
  6. Step 6: Final answer
    x = 208,600.74

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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.