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Finding the Fourth Proportional to 172,600.76, 258,814.56 and 100,577.00

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Solution

The fourth proportional to 172,600.76, 258,814.56 and 100,577.00 is: 150,815.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,600.76 : 258,814.56 = 100,577.00 : x
  2. Step 2: Convert to fraction form
    172,600.76/258,814.56 = 100,577.00/x
  3. Step 3: Cross multiply
    172,600.76x = 258,814.56 × 100,577.00
  4. Step 4: Simplify right side
    172,600.76x = 26,030,790,707.05
  5. Step 5: Solve for x
    x = 26,030,790,707.05/172,600.76
  6. Step 6: Final answer
    x = 150,815.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.