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Finding the Fourth Proportional to 74,050.88, 102,190.28 and 40,516.88

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Solution

The fourth proportional to 74,050.88, 102,190.28 and 40,516.88 is: 55,913.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,050.88 : 102,190.28 = 40,516.88 : x
  2. Step 2: Convert to fraction form
    74,050.88/102,190.28 = 40,516.88/x
  3. Step 3: Cross multiply
    74,050.88x = 102,190.28 × 40,516.88
  4. Step 4: Simplify right side
    74,050.88x = 4,140,430,598.39
  5. Step 5: Solve for x
    x = 4,140,430,598.39/74,050.88
  6. Step 6: Final answer
    x = 55,913.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.