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Finding the Fourth Proportional to 480,866.22, 721,336.86 and 161,019.30

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Solution

The fourth proportional to 480,866.22, 721,336.86 and 161,019.30 is: 241,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,866.22 : 721,336.86 = 161,019.30 : x
  2. Step 2: Convert to fraction form
    480,866.22/721,336.86 = 161,019.30/x
  3. Step 3: Cross multiply
    480,866.22x = 721,336.86 × 161,019.30
  4. Step 4: Simplify right side
    480,866.22x = 116,149,156,261.40
  5. Step 5: Solve for x
    x = 116,149,156,261.40/480,866.22
  6. Step 6: Final answer
    x = 241,541.52

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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.