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Finding the Fourth Proportional to 73,038, 100,792.44 and 43,230

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Solution

The fourth proportional to 73,038, 100,792.44 and 43,230 is: 59,657.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,038 : 100,792.44 = 43,230 : x
  2. Step 2: Convert to fraction form
    73,038/100,792.44 = 43,230/x
  3. Step 3: Cross multiply
    73,038x = 100,792.44 × 43,230
  4. Step 4: Simplify right side
    73,038x = 4,357,257,181.20
  5. Step 5: Solve for x
    x = 4,357,257,181.20/73,038
  6. Step 6: Final answer
    x = 59,657.40

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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.