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Finding the Fourth Proportional to 284,659.96, 426,661.20 and 107,053.60

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Solution

The fourth proportional to 284,659.96, 426,661.20 and 107,053.60 is: 160,456.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,659.96 : 426,661.20 = 107,053.60 : x
  2. Step 2: Convert to fraction form
    284,659.96/426,661.20 = 107,053.60/x
  3. Step 3: Cross multiply
    284,659.96x = 426,661.20 × 107,053.60
  4. Step 4: Simplify right side
    284,659.96x = 45,675,617,440.32
  5. Step 5: Solve for x
    x = 45,675,617,440.32/284,659.96
  6. Step 6: Final answer
    x = 160,456.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.