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Finding the Fourth Proportional to 321,960.36, 482,940.54 and 111,598.30

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Solution

The fourth proportional to 321,960.36, 482,940.54 and 111,598.30 is: 167,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,960.36 : 482,940.54 = 111,598.30 : x
  2. Step 2: Convert to fraction form
    321,960.36/482,940.54 = 111,598.30/x
  3. Step 3: Cross multiply
    321,960.36x = 482,940.54 × 111,598.30
  4. Step 4: Simplify right side
    321,960.36x = 53,895,343,265.08
  5. Step 5: Solve for x
    x = 53,895,343,265.08/321,960.36
  6. Step 6: Final answer
    x = 167,397.45

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Similar ratio
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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.