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Finding the Fourth Proportional to 291,951.10, 437,888.92 and 92,291.64

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Solution

The fourth proportional to 291,951.10, 437,888.92 and 92,291.64 is: 138,425.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,951.10 : 437,888.92 = 92,291.64 : x
  2. Step 2: Convert to fraction form
    291,951.10/437,888.92 = 92,291.64/x
  3. Step 3: Cross multiply
    291,951.10x = 437,888.92 × 92,291.64
  4. Step 4: Simplify right side
    291,951.10x = 40,413,486,564.63
  5. Step 5: Solve for x
    x = 40,413,486,564.63/291,951.10
  6. Step 6: Final answer
    x = 138,425.53

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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.