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Finding the Fourth Proportional to 365,388.30, 548,082.45 and 99,181.80

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Solution

The fourth proportional to 365,388.30, 548,082.45 and 99,181.80 is: 148,772.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,388.30 : 548,082.45 = 99,181.80 : x
  2. Step 2: Convert to fraction form
    365,388.30/548,082.45 = 99,181.80/x
  3. Step 3: Cross multiply
    365,388.30x = 548,082.45 × 99,181.80
  4. Step 4: Simplify right side
    365,388.30x = 54,359,803,939.41
  5. Step 5: Solve for x
    x = 54,359,803,939.41/365,388.30
  6. Step 6: Final answer
    x = 148,772.70

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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.