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Finding the Fourth Proportional to 351,668.20, 527,502.30 and 114,953.80

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Solution

The fourth proportional to 351,668.20, 527,502.30 and 114,953.80 is: 172,430.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,668.20 : 527,502.30 = 114,953.80 : x
  2. Step 2: Convert to fraction form
    351,668.20/527,502.30 = 114,953.80/x
  3. Step 3: Cross multiply
    351,668.20x = 527,502.30 × 114,953.80
  4. Step 4: Simplify right side
    351,668.20x = 60,638,393,893.74
  5. Step 5: Solve for x
    x = 60,638,393,893.74/351,668.20
  6. Step 6: Final answer
    x = 172,430.70

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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.