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Finding the Fourth Proportional to 161,326.80, 241,990.20 and 98,341.20

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Solution

The fourth proportional to 161,326.80, 241,990.20 and 98,341.20 is: 147,511.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,326.80 : 241,990.20 = 98,341.20 : x
  2. Step 2: Convert to fraction form
    161,326.80/241,990.20 = 98,341.20/x
  3. Step 3: Cross multiply
    161,326.80x = 241,990.20 × 98,341.20
  4. Step 4: Simplify right side
    161,326.80x = 23,797,606,656.24
  5. Step 5: Solve for x
    x = 23,797,606,656.24/161,326.80
  6. Step 6: Final answer
    x = 147,511.80

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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.