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Finding the Fourth Proportional to 172,957.80, 238,696.26 and 97,521.96

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Solution

The fourth proportional to 172,957.80, 238,696.26 and 97,521.96 is: 134,588.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,957.80 : 238,696.26 = 97,521.96 : x
  2. Step 2: Convert to fraction form
    172,957.80/238,696.26 = 97,521.96/x
  3. Step 3: Cross multiply
    172,957.80x = 238,696.26 × 97,521.96
  4. Step 4: Simplify right side
    172,957.80x = 23,278,127,119.87
  5. Step 5: Solve for x
    x = 23,278,127,119.87/172,957.80
  6. Step 6: Final answer
    x = 134,588.48

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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.