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Finding the Fourth Proportional to 169,415.45, 252,739.16 and 157,335.01

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Solution

The fourth proportional to 169,415.45, 252,739.16 and 157,335.01 is: 234,717.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,415.45 : 252,739.16 = 157,335.01 : x
  2. Step 2: Convert to fraction form
    169,415.45/252,739.16 = 157,335.01/x
  3. Step 3: Cross multiply
    169,415.45x = 252,739.16 × 157,335.01
  4. Step 4: Simplify right side
    169,415.45x = 39,764,717,879.98
  5. Step 5: Solve for x
    x = 39,764,717,879.98/169,415.45
  6. Step 6: Final answer
    x = 234,717.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.