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Finding the Fourth Proportional to 341,915.88, 512,945.10 and 105,246.84

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Solution

The fourth proportional to 341,915.88, 512,945.10 and 105,246.84 is: 157,892.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,915.88 : 512,945.10 = 105,246.84 : x
  2. Step 2: Convert to fraction form
    341,915.88/512,945.10 = 105,246.84/x
  3. Step 3: Cross multiply
    341,915.88x = 512,945.10 × 105,246.84
  4. Step 4: Simplify right side
    341,915.88x = 53,985,850,868.48
  5. Step 5: Solve for x
    x = 53,985,850,868.48/341,915.88
  6. Step 6: Final answer
    x = 157,892.20

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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.