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Finding the Fourth Proportional to 292,251.36, 438,399 and 92,587.44

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Solution

The fourth proportional to 292,251.36, 438,399 and 92,587.44 is: 138,888.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,251.36 : 438,399 = 92,587.44 : x
  2. Step 2: Convert to fraction form
    292,251.36/438,399 = 92,587.44/x
  3. Step 3: Cross multiply
    292,251.36x = 438,399 × 92,587.44
  4. Step 4: Simplify right side
    292,251.36x = 40,590,241,108.56
  5. Step 5: Solve for x
    x = 40,590,241,108.56/292,251.36
  6. Step 6: Final answer
    x = 138,888.12

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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.