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Finding the Fourth Proportional to 339,615.48, 468,671.90 and 186,656.28

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Solution

The fourth proportional to 339,615.48, 468,671.90 and 186,656.28 is: 257,587.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,615.48 : 468,671.90 = 186,656.28 : x
  2. Step 2: Convert to fraction form
    339,615.48/468,671.90 = 186,656.28/x
  3. Step 3: Cross multiply
    339,615.48x = 468,671.90 × 186,656.28
  4. Step 4: Simplify right side
    339,615.48x = 87,480,553,394.53
  5. Step 5: Solve for x
    x = 87,480,553,394.53/339,615.48
  6. Step 6: Final answer
    x = 257,587.06

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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.