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Finding the Fourth Proportional to 110,981.70, 153,144.18 and 63,233.82

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Solution

The fourth proportional to 110,981.70, 153,144.18 and 63,233.82 is: 87,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,981.70 : 153,144.18 = 63,233.82 : x
  2. Step 2: Convert to fraction form
    110,981.70/153,144.18 = 63,233.82/x
  3. Step 3: Cross multiply
    110,981.70x = 153,144.18 × 63,233.82
  4. Step 4: Simplify right side
    110,981.70x = 9,683,891,512.17
  5. Step 5: Solve for x
    x = 9,683,891,512.17/110,981.70
  6. Step 6: Final answer
    x = 87,256.65

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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.