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Finding the Fourth Proportional to 172,917.64, 238,618.02 and 97,465.96

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Solution

The fourth proportional to 172,917.64, 238,618.02 and 97,465.96 is: 134,498.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,917.64 : 238,618.02 = 97,465.96 : x
  2. Step 2: Convert to fraction form
    172,917.64/238,618.02 = 97,465.96/x
  3. Step 3: Cross multiply
    172,917.64x = 238,618.02 × 97,465.96
  4. Step 4: Simplify right side
    172,917.64x = 23,257,134,392.60
  5. Step 5: Solve for x
    x = 23,257,134,392.60/172,917.64
  6. Step 6: Final answer
    x = 134,498.33

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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.