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Finding the Fourth Proportional to 157,174.22, 216,891.62 and 85,549.97

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Solution

The fourth proportional to 157,174.22, 216,891.62 and 85,549.97 is: 118,054.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,174.22 : 216,891.62 = 85,549.97 : x
  2. Step 2: Convert to fraction form
    157,174.22/216,891.62 = 85,549.97/x
  3. Step 3: Cross multiply
    157,174.22x = 216,891.62 × 85,549.97
  4. Step 4: Simplify right side
    157,174.22x = 18,555,072,500.76
  5. Step 5: Solve for x
    x = 18,555,072,500.76/157,174.22
  6. Step 6: Final answer
    x = 118,054.17

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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.