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Finding the Fourth Proportional to 111,028, 153,218.64 and 60,727

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Solution

The fourth proportional to 111,028, 153,218.64 and 60,727 is: 83,803.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,028 : 153,218.64 = 60,727 : x
  2. Step 2: Convert to fraction form
    111,028/153,218.64 = 60,727/x
  3. Step 3: Cross multiply
    111,028x = 153,218.64 × 60,727
  4. Step 4: Simplify right side
    111,028x = 9,304,508,351.28
  5. Step 5: Solve for x
    x = 9,304,508,351.28/111,028
  6. Step 6: Final answer
    x = 83,803.26

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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.