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Finding the Fourth Proportional to 168,045.15, 251,903.70 and 150,330.45

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Solution

The fourth proportional to 168,045.15, 251,903.70 and 150,330.45 is: 225,348.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,045.15 : 251,903.70 = 150,330.45 : x
  2. Step 2: Convert to fraction form
    168,045.15/251,903.70 = 150,330.45/x
  3. Step 3: Cross multiply
    168,045.15x = 251,903.70 × 150,330.45
  4. Step 4: Simplify right side
    168,045.15x = 37,868,796,577.67
  5. Step 5: Solve for x
    x = 37,868,796,577.67/168,045.15
  6. Step 6: Final answer
    x = 225,348.94

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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.