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Finding the Fourth Proportional to 111,052.71, 153,256.37 and 60,751.71

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Solution

The fourth proportional to 111,052.71, 153,256.37 and 60,751.71 is: 83,839.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,052.71 : 153,256.37 = 60,751.71 : x
  2. Step 2: Convert to fraction form
    111,052.71/153,256.37 = 60,751.71/x
  3. Step 3: Cross multiply
    111,052.71x = 153,256.37 × 60,751.71
  4. Step 4: Simplify right side
    111,052.71x = 9,310,586,242.13
  5. Step 5: Solve for x
    x = 9,310,586,242.13/111,052.71
  6. Step 6: Final answer
    x = 83,839.34

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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.