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Finding the Fourth Proportional to 341,715.48, 512,381.20 and 141,901.44

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Solution

The fourth proportional to 341,715.48, 512,381.20 and 141,901.44 is: 212,772.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,715.48 : 512,381.20 = 141,901.44 : x
  2. Step 2: Convert to fraction form
    341,715.48/512,381.20 = 141,901.44/x
  3. Step 3: Cross multiply
    341,715.48x = 512,381.20 × 141,901.44
  4. Step 4: Simplify right side
    341,715.48x = 72,707,630,108.93
  5. Step 5: Solve for x
    x = 72,707,630,108.93/341,715.48
  6. Step 6: Final answer
    x = 212,772.42

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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.