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Finding the Fourth Proportional to 365,521.20, 548,281.80 and 155,131.80

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Solution

The fourth proportional to 365,521.20, 548,281.80 and 155,131.80 is: 232,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,521.20 : 548,281.80 = 155,131.80 : x
  2. Step 2: Convert to fraction form
    365,521.20/548,281.80 = 155,131.80/x
  3. Step 3: Cross multiply
    365,521.20x = 548,281.80 × 155,131.80
  4. Step 4: Simplify right side
    365,521.20x = 85,055,942,541.24
  5. Step 5: Solve for x
    x = 85,055,942,541.24/365,521.20
  6. Step 6: Final answer
    x = 232,697.70

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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.