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Finding the Fourth Proportional to 169,705.68, 234,037.34 and 115,339.28

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Solution

The fourth proportional to 169,705.68, 234,037.34 and 115,339.28 is: 159,061.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,705.68 : 234,037.34 = 115,339.28 : x
  2. Step 2: Convert to fraction form
    169,705.68/234,037.34 = 115,339.28/x
  3. Step 3: Cross multiply
    169,705.68x = 234,037.34 × 115,339.28
  4. Step 4: Simplify right side
    169,705.68x = 26,993,698,288.72
  5. Step 5: Solve for x
    x = 26,993,698,288.72/169,705.68
  6. Step 6: Final answer
    x = 159,061.84

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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.