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Finding the Fourth Proportional to 292,086.59, 438,207.51 and 92,410.52

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Solution

The fourth proportional to 292,086.59, 438,207.51 and 92,410.52 is: 138,640.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,086.59 : 438,207.51 = 92,410.52 : x
  2. Step 2: Convert to fraction form
    292,086.59/438,207.51 = 92,410.52/x
  3. Step 3: Cross multiply
    292,086.59x = 438,207.51 × 92,410.52
  4. Step 4: Simplify right side
    292,086.59x = 40,494,983,867.01
  5. Step 5: Solve for x
    x = 40,494,983,867.01/292,086.59
  6. Step 6: Final answer
    x = 138,640.34

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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.