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Finding the Fourth Proportional to 186,745.20, 257,705.52 and 101,860.56

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Solution

The fourth proportional to 186,745.20, 257,705.52 and 101,860.56 is: 140,566.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,745.20 : 257,705.52 = 101,860.56 : x
  2. Step 2: Convert to fraction form
    186,745.20/257,705.52 = 101,860.56/x
  3. Step 3: Cross multiply
    186,745.20x = 257,705.52 × 101,860.56
  4. Step 4: Simplify right side
    186,745.20x = 26,250,028,582.29
  5. Step 5: Solve for x
    x = 26,250,028,582.29/186,745.20
  6. Step 6: Final answer
    x = 140,566.01

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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.