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Finding the Fourth Proportional to 157,796.19, 217,614.51 and 123,345.48

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Solution

The fourth proportional to 157,796.19, 217,614.51 and 123,345.48 is: 170,104.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,796.19 : 217,614.51 = 123,345.48 : x
  2. Step 2: Convert to fraction form
    157,796.19/217,614.51 = 123,345.48/x
  3. Step 3: Cross multiply
    157,796.19x = 217,614.51 × 123,345.48
  4. Step 4: Simplify right side
    157,796.19x = 26,841,766,190.91
  5. Step 5: Solve for x
    x = 26,841,766,190.91/157,796.19
  6. Step 6: Final answer
    x = 170,104.02

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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.