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Finding the Fourth Proportional to 111,284.48, 153,572.64 and 60,983.48

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Solution

The fourth proportional to 111,284.48, 153,572.64 and 60,983.48 is: 84,157.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,284.48 : 153,572.64 = 60,983.48 : x
  2. Step 2: Convert to fraction form
    111,284.48/153,572.64 = 60,983.48/x
  3. Step 3: Cross multiply
    111,284.48x = 153,572.64 × 60,983.48
  4. Step 4: Simplify right side
    111,284.48x = 9,365,394,019.99
  5. Step 5: Solve for x
    x = 9,365,394,019.99/111,284.48
  6. Step 6: Final answer
    x = 84,157.23

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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.