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Finding the Fourth Proportional to 185,553.40, 256,064.15 and 100,670.44

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Solution

The fourth proportional to 185,553.40, 256,064.15 and 100,670.44 is: 138,925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,553.40 : 256,064.15 = 100,670.44 : x
  2. Step 2: Convert to fraction form
    185,553.40/256,064.15 = 100,670.44/x
  3. Step 3: Cross multiply
    185,553.40x = 256,064.15 × 100,670.44
  4. Step 4: Simplify right side
    185,553.40x = 25,778,090,648.73
  5. Step 5: Solve for x
    x = 25,778,090,648.73/185,553.40
  6. Step 6: Final answer
    x = 138,925.46

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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.