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Finding the Fourth Proportional to 365,424.30, 548,136.45 and 99,217.80

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Solution

The fourth proportional to 365,424.30, 548,136.45 and 99,217.80 is: 148,826.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,424.30 : 548,136.45 = 99,217.80 : x
  2. Step 2: Convert to fraction form
    365,424.30/548,136.45 = 99,217.80/x
  3. Step 3: Cross multiply
    365,424.30x = 548,136.45 × 99,217.80
  4. Step 4: Simplify right side
    365,424.30x = 54,384,892,668.81
  5. Step 5: Solve for x
    x = 54,384,892,668.81/365,424.30
  6. Step 6: Final answer
    x = 148,826.70

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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.