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Finding the Fourth Proportional to 169,227.78, 233,410.14 and 121,530.12

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Solution

The fourth proportional to 169,227.78, 233,410.14 and 121,530.12 is: 167,622.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,227.78 : 233,410.14 = 121,530.12 : x
  2. Step 2: Convert to fraction form
    169,227.78/233,410.14 = 121,530.12/x
  3. Step 3: Cross multiply
    169,227.78x = 233,410.14 × 121,530.12
  4. Step 4: Simplify right side
    169,227.78x = 28,366,362,323.42
  5. Step 5: Solve for x
    x = 28,366,362,323.42/169,227.78
  6. Step 6: Final answer
    x = 167,622.37

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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.