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Finding the Fourth Proportional to 111,539.58, 153,924.74 and 60,552.28

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Solution

The fourth proportional to 111,539.58, 153,924.74 and 60,552.28 is: 83,562.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,539.58 : 153,924.74 = 60,552.28 : x
  2. Step 2: Convert to fraction form
    111,539.58/153,924.74 = 60,552.28/x
  3. Step 3: Cross multiply
    111,539.58x = 153,924.74 × 60,552.28
  4. Step 4: Simplify right side
    111,539.58x = 9,320,493,955.41
  5. Step 5: Solve for x
    x = 9,320,493,955.41/111,539.58
  6. Step 6: Final answer
    x = 83,562.21

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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.