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Finding the Fourth Proportional to 341,649.30, 512,421.46 and 113,948.94

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Solution

The fourth proportional to 341,649.30, 512,421.46 and 113,948.94 is: 170,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,649.30 : 512,421.46 = 113,948.94 : x
  2. Step 2: Convert to fraction form
    341,649.30/512,421.46 = 113,948.94/x
  3. Step 3: Cross multiply
    341,649.30x = 512,421.46 × 113,948.94
  4. Step 4: Simplify right side
    341,649.30x = 58,389,881,915.38
  5. Step 5: Solve for x
    x = 58,389,881,915.38/341,649.30
  6. Step 6: Final answer
    x = 170,905.90

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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.