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Finding the Fourth Proportional to 211,636.50, 292,057.50 and 116,144.76

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Solution

The fourth proportional to 211,636.50, 292,057.50 and 116,144.76 is: 160,279.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,636.50 : 292,057.50 = 116,144.76 : x
  2. Step 2: Convert to fraction form
    211,636.50/292,057.50 = 116,144.76/x
  3. Step 3: Cross multiply
    211,636.50x = 292,057.50 × 116,144.76
  4. Step 4: Simplify right side
    211,636.50x = 33,920,948,243.70
  5. Step 5: Solve for x
    x = 33,920,948,243.70/211,636.50
  6. Step 6: Final answer
    x = 160,279.29

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.