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Finding the Fourth Proportional to 228,382.47, 342,596.72 and 78,603.08

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Solution

The fourth proportional to 228,382.47, 342,596.72 and 78,603.08 is: 117,912.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,382.47 : 342,596.72 = 78,603.08 : x
  2. Step 2: Convert to fraction form
    228,382.47/342,596.72 = 78,603.08/x
  3. Step 3: Cross multiply
    228,382.47x = 342,596.72 × 78,603.08
  4. Step 4: Simplify right side
    228,382.47x = 26,929,155,873.42
  5. Step 5: Solve for x
    x = 26,929,155,873.42/228,382.47
  6. Step 6: Final answer
    x = 117,912.53

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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.