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Finding the Fourth Proportional to 151,287.40, 226,979.70 and 101,423.80

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Solution

The fourth proportional to 151,287.40, 226,979.70 and 101,423.80 is: 152,168.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,287.40 : 226,979.70 = 101,423.80 : x
  2. Step 2: Convert to fraction form
    151,287.40/226,979.70 = 101,423.80/x
  3. Step 3: Cross multiply
    151,287.40x = 226,979.70 × 101,423.80
  4. Step 4: Simplify right side
    151,287.40x = 23,021,143,696.86
  5. Step 5: Solve for x
    x = 23,021,143,696.86/151,287.40
  6. Step 6: Final answer
    x = 152,168.28

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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.