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Finding the Fourth Proportional to 302,908.20, 454,362.30 and 92,518.80

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Solution

The fourth proportional to 302,908.20, 454,362.30 and 92,518.80 is: 138,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,908.20 : 454,362.30 = 92,518.80 : x
  2. Step 2: Convert to fraction form
    302,908.20/454,362.30 = 92,518.80/x
  3. Step 3: Cross multiply
    302,908.20x = 454,362.30 × 92,518.80
  4. Step 4: Simplify right side
    302,908.20x = 42,037,054,761.24
  5. Step 5: Solve for x
    x = 42,037,054,761.24/302,908.20
  6. Step 6: Final answer
    x = 138,778.20

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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.