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Finding the Fourth Proportional to 71,201.70, 98,330.76 and 49,944.06

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Solution

The fourth proportional to 71,201.70, 98,330.76 and 49,944.06 is: 68,973.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,201.70 : 98,330.76 = 49,944.06 : x
  2. Step 2: Convert to fraction form
    71,201.70/98,330.76 = 49,944.06/x
  3. Step 3: Cross multiply
    71,201.70x = 98,330.76 × 49,944.06
  4. Step 4: Simplify right side
    71,201.70x = 4,911,037,377.29
  5. Step 5: Solve for x
    x = 4,911,037,377.29/71,201.70
  6. Step 6: Final answer
    x = 68,973.60

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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.