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Finding the Fourth Proportional to 159,256.88, 238,360.28 and 88,070

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Solution

The fourth proportional to 159,256.88, 238,360.28 and 88,070 is: 131,814.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,256.88 : 238,360.28 = 88,070 : x
  2. Step 2: Convert to fraction form
    159,256.88/238,360.28 = 88,070/x
  3. Step 3: Cross multiply
    159,256.88x = 238,360.28 × 88,070
  4. Step 4: Simplify right side
    159,256.88x = 20,992,389,859.60
  5. Step 5: Solve for x
    x = 20,992,389,859.60/159,256.88
  6. Step 6: Final answer
    x = 131,814.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.