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Finding the Fourth Proportional to 503,516.56, 755,014.80 and 148,485.44

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Solution

The fourth proportional to 503,516.56, 755,014.80 and 148,485.44 is: 222,651.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,516.56 : 755,014.80 = 148,485.44 : x
  2. Step 2: Convert to fraction form
    503,516.56/755,014.80 = 148,485.44/x
  3. Step 3: Cross multiply
    503,516.56x = 755,014.80 × 148,485.44
  4. Step 4: Simplify right side
    503,516.56x = 112,108,704,784.51
  5. Step 5: Solve for x
    x = 112,108,704,784.51/503,516.56
  6. Step 6: Final answer
    x = 222,651.48

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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.