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Finding the Fourth Proportional to 293,889.60, 405,571.68 and 159,756.48

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Solution

The fourth proportional to 293,889.60, 405,571.68 and 159,756.48 is: 220,466.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,889.60 : 405,571.68 = 159,756.48 : x
  2. Step 2: Convert to fraction form
    293,889.60/405,571.68 = 159,756.48/x
  3. Step 3: Cross multiply
    293,889.60x = 405,571.68 × 159,756.48
  4. Step 4: Simplify right side
    293,889.60x = 64,792,703,984.49
  5. Step 5: Solve for x
    x = 64,792,703,984.49/293,889.60
  6. Step 6: Final answer
    x = 220,466.13

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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.