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Finding the Fourth Proportional to 169,917.60, 234,462.96 and 98,300.64

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Solution

The fourth proportional to 169,917.60, 234,462.96 and 98,300.64 is: 135,641.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,917.60 : 234,462.96 = 98,300.64 : x
  2. Step 2: Convert to fraction form
    169,917.60/234,462.96 = 98,300.64/x
  3. Step 3: Cross multiply
    169,917.60x = 234,462.96 × 98,300.64
  4. Step 4: Simplify right side
    169,917.60x = 23,047,859,024.29
  5. Step 5: Solve for x
    x = 23,047,859,024.29/169,917.60
  6. Step 6: Final answer
    x = 135,641.39

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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.