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Finding the Fourth Proportional to 169,846.60, 254,842.80 and 86,740.60

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Solution

The fourth proportional to 169,846.60, 254,842.80 and 86,740.60 is: 130,148.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,846.60 : 254,842.80 = 86,740.60 : x
  2. Step 2: Convert to fraction form
    169,846.60/254,842.80 = 86,740.60/x
  3. Step 3: Cross multiply
    169,846.60x = 254,842.80 × 86,740.60
  4. Step 4: Simplify right side
    169,846.60x = 22,105,217,377.68
  5. Step 5: Solve for x
    x = 22,105,217,377.68/169,846.60
  6. Step 6: Final answer
    x = 130,148.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.