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Finding the Fourth Proportional to 312,121.02, 467,900.46 and 112,300.92

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Solution

The fourth proportional to 312,121.02, 467,900.46 and 112,300.92 is: 168,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,121.02 : 467,900.46 = 112,300.92 : x
  2. Step 2: Convert to fraction form
    312,121.02/467,900.46 = 112,300.92/x
  3. Step 3: Cross multiply
    312,121.02x = 467,900.46 × 112,300.92
  4. Step 4: Simplify right side
    312,121.02x = 52,545,652,126.42
  5. Step 5: Solve for x
    x = 52,545,652,126.42/312,121.02
  6. Step 6: Final answer
    x = 168,350.25

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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.