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Finding the Fourth Proportional to 172,883.58, 238,688.28 and 132,521.28

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Solution

The fourth proportional to 172,883.58, 238,688.28 and 132,521.28 is: 182,962.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,883.58 : 238,688.28 = 132,521.28 : x
  2. Step 2: Convert to fraction form
    172,883.58/238,688.28 = 132,521.28/x
  3. Step 3: Cross multiply
    172,883.58x = 238,688.28 × 132,521.28
  4. Step 4: Simplify right side
    172,883.58x = 31,631,276,386.60
  5. Step 5: Solve for x
    x = 31,631,276,386.60/172,883.58
  6. Step 6: Final answer
    x = 182,962.87

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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.