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Finding the Fourth Proportional to 102,777.78, 141,856.20 and 62,483

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Solution

The fourth proportional to 102,777.78, 141,856.20 and 62,483 is: 86,240.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,777.78 : 141,856.20 = 62,483 : x
  2. Step 2: Convert to fraction form
    102,777.78/141,856.20 = 62,483/x
  3. Step 3: Cross multiply
    102,777.78x = 141,856.20 × 62,483
  4. Step 4: Simplify right side
    102,777.78x = 8,863,600,944.60
  5. Step 5: Solve for x
    x = 8,863,600,944.60/102,777.78
  6. Step 6: Final answer
    x = 86,240.44

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1.5x scale

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.