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Finding the Fourth Proportional to 286,646.70, 395,508.13 and 173,467.02

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Solution

The fourth proportional to 286,646.70, 395,508.13 and 173,467.02 is: 239,345.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,646.70 : 395,508.13 = 173,467.02 : x
  2. Step 2: Convert to fraction form
    286,646.70/395,508.13 = 173,467.02/x
  3. Step 3: Cross multiply
    286,646.70x = 395,508.13 × 173,467.02
  4. Step 4: Simplify right side
    286,646.70x = 68,607,616,696.87
  5. Step 5: Solve for x
    x = 68,607,616,696.87/286,646.70
  6. Step 6: Final answer
    x = 239,345.57

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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.