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Finding the Fourth Proportional to 188,577.78, 260,215.53 and 108,000.51

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Solution

The fourth proportional to 188,577.78, 260,215.53 and 108,000.51 is: 149,028.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,577.78 : 260,215.53 = 108,000.51 : x
  2. Step 2: Convert to fraction form
    188,577.78/260,215.53 = 108,000.51/x
  3. Step 3: Cross multiply
    188,577.78x = 260,215.53 × 108,000.51
  4. Step 4: Simplify right side
    188,577.78x = 28,103,409,949.92
  5. Step 5: Solve for x
    x = 28,103,409,949.92/188,577.78
  6. Step 6: Final answer
    x = 149,028.22

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1.5x scale

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.