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Finding the Fourth Proportional to 70,817.22, 97,696.53 and 43,905.78

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Solution

The fourth proportional to 70,817.22, 97,696.53 and 43,905.78 is: 60,570.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,817.22 : 97,696.53 = 43,905.78 : x
  2. Step 2: Convert to fraction form
    70,817.22/97,696.53 = 43,905.78/x
  3. Step 3: Cross multiply
    70,817.22x = 97,696.53 × 43,905.78
  4. Step 4: Simplify right side
    70,817.22x = 4,289,442,352.94
  5. Step 5: Solve for x
    x = 4,289,442,352.94/70,817.22
  6. Step 6: Final answer
    x = 60,570.61

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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.