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Finding the Fourth Proportional to 172,895.64, 238,586.76 and 96,422.58

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Solution

The fourth proportional to 172,895.64, 238,586.76 and 96,422.58 is: 133,058.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,895.64 : 238,586.76 = 96,422.58 : x
  2. Step 2: Convert to fraction form
    172,895.64/238,586.76 = 96,422.58/x
  3. Step 3: Cross multiply
    172,895.64x = 238,586.76 × 96,422.58
  4. Step 4: Simplify right side
    172,895.64x = 23,005,150,953.04
  5. Step 5: Solve for x
    x = 23,005,150,953.04/172,895.64
  6. Step 6: Final answer
    x = 133,058.02

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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.