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Finding the Fourth Proportional to 254,226.80, 381,340.20 and 64,686.80

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Solution

The fourth proportional to 254,226.80, 381,340.20 and 64,686.80 is: 97,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,226.80 : 381,340.20 = 64,686.80 : x
  2. Step 2: Convert to fraction form
    254,226.80/381,340.20 = 64,686.80/x
  3. Step 3: Cross multiply
    254,226.80x = 381,340.20 × 64,686.80
  4. Step 4: Simplify right side
    254,226.80x = 24,667,677,249.36
  5. Step 5: Solve for x
    x = 24,667,677,249.36/254,226.80
  6. Step 6: Final answer
    x = 97,030.20

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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.