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Finding the Fourth Proportional to 351,702.85, 527,446.55 and 127,035.58

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Solution

The fourth proportional to 351,702.85, 527,446.55 and 127,035.58 is: 190,514.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,702.85 : 527,446.55 = 127,035.58 : x
  2. Step 2: Convert to fraction form
    351,702.85/527,446.55 = 127,035.58/x
  3. Step 3: Cross multiply
    351,702.85x = 527,446.55 × 127,035.58
  4. Step 4: Simplify right side
    351,702.85x = 67,004,478,398.25
  5. Step 5: Solve for x
    x = 67,004,478,398.25/351,702.85
  6. Step 6: Final answer
    x = 190,514.46

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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.