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Finding the Fourth Proportional to 365,455.80, 548,183.70 and 99,257.40

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Solution

The fourth proportional to 365,455.80, 548,183.70 and 99,257.40 is: 148,886.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,455.80 : 548,183.70 = 99,257.40 : x
  2. Step 2: Convert to fraction form
    365,455.80/548,183.70 = 99,257.40/x
  3. Step 3: Cross multiply
    365,455.80x = 548,183.70 × 99,257.40
  4. Step 4: Simplify right side
    365,455.80x = 54,411,288,784.38
  5. Step 5: Solve for x
    x = 54,411,288,784.38/365,455.80
  6. Step 6: Final answer
    x = 148,886.10

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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.