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Finding the Fourth Proportional to 111,104.64, 153,324.69 and 60,803.64

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Solution

The fourth proportional to 111,104.64, 153,324.69 and 60,803.64 is: 83,909.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,104.64 : 153,324.69 = 60,803.64 : x
  2. Step 2: Convert to fraction form
    111,104.64/153,324.69 = 60,803.64/x
  3. Step 3: Cross multiply
    111,104.64x = 153,324.69 × 60,803.64
  4. Step 4: Simplify right side
    111,104.64x = 9,322,699,253.87
  5. Step 5: Solve for x
    x = 9,322,699,253.87/111,104.64
  6. Step 6: Final answer
    x = 83,909.18

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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.