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Finding the Fourth Proportional to 171,260.42, 236,386.90 and 99,654.32

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Solution

The fourth proportional to 171,260.42, 236,386.90 and 99,654.32 is: 137,550.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,260.42 : 236,386.90 = 99,654.32 : x
  2. Step 2: Convert to fraction form
    171,260.42/236,386.90 = 99,654.32/x
  3. Step 3: Cross multiply
    171,260.42x = 236,386.90 × 99,654.32
  4. Step 4: Simplify right side
    171,260.42x = 23,556,975,776.41
  5. Step 5: Solve for x
    x = 23,556,975,776.41/171,260.42
  6. Step 6: Final answer
    x = 137,550.61

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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.