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Finding the Fourth Proportional to 293,213.80, 439,763.10 and 96,221.80

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Solution

The fourth proportional to 293,213.80, 439,763.10 and 96,221.80 is: 144,313.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,213.80 : 439,763.10 = 96,221.80 : x
  2. Step 2: Convert to fraction form
    293,213.80/439,763.10 = 96,221.80/x
  3. Step 3: Cross multiply
    293,213.80x = 439,763.10 × 96,221.80
  4. Step 4: Simplify right side
    293,213.80x = 42,314,797,055.58
  5. Step 5: Solve for x
    x = 42,314,797,055.58/293,213.80
  6. Step 6: Final answer
    x = 144,313.80

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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.