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Finding the Fourth Proportional to 111,057.66, 153,263.18 and 60,756.66

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Solution

The fourth proportional to 111,057.66, 153,263.18 and 60,756.66 is: 83,846.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,057.66 : 153,263.18 = 60,756.66 : x
  2. Step 2: Convert to fraction form
    111,057.66/153,263.18 = 60,756.66/x
  3. Step 3: Cross multiply
    111,057.66x = 153,263.18 × 60,756.66
  4. Step 4: Simplify right side
    111,057.66x = 9,311,758,917.78
  5. Step 5: Solve for x
    x = 9,311,758,917.78/111,057.66
  6. Step 6: Final answer
    x = 83,846.17

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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.