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Finding the Fourth Proportional to 291,968.76, 437,915.48 and 92,309.44

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Solution

The fourth proportional to 291,968.76, 437,915.48 and 92,309.44 is: 138,452.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,968.76 : 437,915.48 = 92,309.44 : x
  2. Step 2: Convert to fraction form
    291,968.76/437,915.48 = 92,309.44/x
  3. Step 3: Cross multiply
    291,968.76x = 437,915.48 × 92,309.44
  4. Step 4: Simplify right side
    291,968.76x = 40,423,732,726.13
  5. Step 5: Solve for x
    x = 40,423,732,726.13/291,968.76
  6. Step 6: Final answer
    x = 138,452.25

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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.