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Finding the Fourth Proportional to 186,755.44, 257,721.60 and 101,871.76

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Solution

The fourth proportional to 186,755.44, 257,721.60 and 101,871.76 is: 140,582.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,755.44 : 257,721.60 = 101,871.76 : x
  2. Step 2: Convert to fraction form
    186,755.44/257,721.60 = 101,871.76/x
  3. Step 3: Cross multiply
    186,755.44x = 257,721.60 × 101,871.76
  4. Step 4: Simplify right side
    186,755.44x = 26,254,552,982.02
  5. Step 5: Solve for x
    x = 26,254,552,982.02/186,755.44
  6. Step 6: Final answer
    x = 140,582.53

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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.