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Finding the Fourth Proportional to 270,055.30, 403,916.55 and 228,064.90

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Solution

The fourth proportional to 270,055.30, 403,916.55 and 228,064.90 is: 341,112.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,055.30 : 403,916.55 = 228,064.90 : x
  2. Step 2: Convert to fraction form
    270,055.30/403,916.55 = 228,064.90/x
  3. Step 3: Cross multiply
    270,055.30x = 403,916.55 × 228,064.90
  4. Step 4: Simplify right side
    270,055.30x = 92,119,187,584.10
  5. Step 5: Solve for x
    x = 92,119,187,584.10/270,055.30
  6. Step 6: Final answer
    x = 341,112.31

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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.