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Finding the Fourth Proportional to 186,512.76, 257,387.63 and 101,629.89

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Solution

The fourth proportional to 186,512.76, 257,387.63 and 101,629.89 is: 140,249.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,512.76 : 257,387.63 = 101,629.89 : x
  2. Step 2: Convert to fraction form
    186,512.76/257,387.63 = 101,629.89/x
  3. Step 3: Cross multiply
    186,512.76x = 257,387.63 × 101,629.89
  4. Step 4: Simplify right side
    186,512.76x = 26,158,276,016.11
  5. Step 5: Solve for x
    x = 26,158,276,016.11/186,512.76
  6. Step 6: Final answer
    x = 140,249.26

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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.