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Finding the Fourth Proportional to 111,057.48, 153,260.64 and 60,756.48

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Solution

The fourth proportional to 111,057.48, 153,260.64 and 60,756.48 is: 83,844.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,057.48 : 153,260.64 = 60,756.48 : x
  2. Step 2: Convert to fraction form
    111,057.48/153,260.64 = 60,756.48/x
  3. Step 3: Cross multiply
    111,057.48x = 153,260.64 × 60,756.48
  4. Step 4: Simplify right side
    111,057.48x = 9,311,577,008.95
  5. Step 5: Solve for x
    x = 9,311,577,008.95/111,057.48
  6. Step 6: Final answer
    x = 83,844.66

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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.