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Finding the Fourth Proportional to 72,924.84, 100,627.20 and 40,651.54

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Solution

The fourth proportional to 72,924.84, 100,627.20 and 40,651.54 is: 56,094.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,924.84 : 100,627.20 = 40,651.54 : x
  2. Step 2: Convert to fraction form
    72,924.84/100,627.20 = 40,651.54/x
  3. Step 3: Cross multiply
    72,924.84x = 100,627.20 × 40,651.54
  4. Step 4: Simplify right side
    72,924.84x = 4,090,650,394.32
  5. Step 5: Solve for x
    x = 4,090,650,394.32/72,924.84
  6. Step 6: Final answer
    x = 56,094.06

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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.