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Finding the Fourth Proportional to 111,056.66, 153,261.80 and 60,755.66

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Solution

The fourth proportional to 111,056.66, 153,261.80 and 60,755.66 is: 83,844.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,056.66 : 153,261.80 = 60,755.66 : x
  2. Step 2: Convert to fraction form
    111,056.66/153,261.80 = 60,755.66/x
  3. Step 3: Cross multiply
    111,056.66x = 153,261.80 × 60,755.66
  4. Step 4: Simplify right side
    111,056.66x = 9,311,521,811.79
  5. Step 5: Solve for x
    x = 9,311,521,811.79/111,056.66
  6. Step 6: Final answer
    x = 83,844.79

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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.