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Finding the Fourth Proportional to 172,585.68, 238,112.64 and 97,119.60

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Solution

The fourth proportional to 172,585.68, 238,112.64 and 97,119.60 is: 133,993.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,585.68 : 238,112.64 = 97,119.60 : x
  2. Step 2: Convert to fraction form
    172,585.68/238,112.64 = 97,119.60/x
  3. Step 3: Cross multiply
    172,585.68x = 238,112.64 × 97,119.60
  4. Step 4: Simplify right side
    172,585.68x = 23,125,404,351.74
  5. Step 5: Solve for x
    x = 23,125,404,351.74/172,585.68
  6. Step 6: Final answer
    x = 133,993.76

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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.