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Finding the Fourth Proportional to 111,167.78, 153,411.36 and 60,180.26

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Solution

The fourth proportional to 111,167.78, 153,411.36 and 60,180.26 is: 83,048.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,167.78 : 153,411.36 = 60,180.26 : x
  2. Step 2: Convert to fraction form
    111,167.78/153,411.36 = 60,180.26/x
  3. Step 3: Cross multiply
    111,167.78x = 153,411.36 × 60,180.26
  4. Step 4: Simplify right side
    111,167.78x = 9,232,334,764.70
  5. Step 5: Solve for x
    x = 9,232,334,764.70/111,167.78
  6. Step 6: Final answer
    x = 83,048.66

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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.