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Finding the Fourth Proportional to 134,079.26, 185,018.36 and 73,646.78

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Solution

The fourth proportional to 134,079.26, 185,018.36 and 73,646.78 is: 101,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,079.26 : 185,018.36 = 73,646.78 : x
  2. Step 2: Convert to fraction form
    134,079.26/185,018.36 = 73,646.78/x
  3. Step 3: Cross multiply
    134,079.26x = 185,018.36 × 73,646.78
  4. Step 4: Simplify right side
    134,079.26x = 13,626,007,101.54
  5. Step 5: Solve for x
    x = 13,626,007,101.54/134,079.26
  6. Step 6: Final answer
    x = 101,626.51

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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.