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Finding the Fourth Proportional to 111,392.57, 153,722.10 and 60,405.27

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Solution

The fourth proportional to 111,392.57, 153,722.10 and 60,405.27 is: 83,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,392.57 : 153,722.10 = 60,405.27 : x
  2. Step 2: Convert to fraction form
    111,392.57/153,722.10 = 60,405.27/x
  3. Step 3: Cross multiply
    111,392.57x = 153,722.10 × 60,405.27
  4. Step 4: Simplify right side
    111,392.57x = 9,285,624,955.47
  5. Step 5: Solve for x
    x = 9,285,624,955.47/111,392.57
  6. Step 6: Final answer
    x = 83,359.47

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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.