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Finding the Fourth Proportional to 292,047.60, 438,125.48 and 92,418.24

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Solution

The fourth proportional to 292,047.60, 438,125.48 and 92,418.24 is: 138,644.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,047.60 : 438,125.48 = 92,418.24 : x
  2. Step 2: Convert to fraction form
    292,047.60/438,125.48 = 92,418.24/x
  3. Step 3: Cross multiply
    292,047.60x = 438,125.48 × 92,418.24
  4. Step 4: Simplify right side
    292,047.60x = 40,490,785,760.76
  5. Step 5: Solve for x
    x = 40,490,785,760.76/292,047.60
  6. Step 6: Final answer
    x = 138,644.47

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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.