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Finding the Fourth Proportional to 70,192.82, 96,621.98 and 61,224.70

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Solution

The fourth proportional to 70,192.82, 96,621.98 and 61,224.70 is: 84,277.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,192.82 : 96,621.98 = 61,224.70 : x
  2. Step 2: Convert to fraction form
    70,192.82/96,621.98 = 61,224.70/x
  3. Step 3: Cross multiply
    70,192.82x = 96,621.98 × 61,224.70
  4. Step 4: Simplify right side
    70,192.82x = 5,915,651,738.91
  5. Step 5: Solve for x
    x = 5,915,651,738.91/70,192.82
  6. Step 6: Final answer
    x = 84,277.16

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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.