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Finding the Fourth Proportional to 241,415.20, 362,187.60 and 215,300.80

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Solution

The fourth proportional to 241,415.20, 362,187.60 and 215,300.80 is: 323,008.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,415.20 : 362,187.60 = 215,300.80 : x
  2. Step 2: Convert to fraction form
    241,415.20/362,187.60 = 215,300.80/x
  3. Step 3: Cross multiply
    241,415.20x = 362,187.60 × 215,300.80
  4. Step 4: Simplify right side
    241,415.20x = 77,979,280,030.08
  5. Step 5: Solve for x
    x = 77,979,280,030.08/241,415.20
  6. Step 6: Final answer
    x = 323,008.99

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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.