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Finding the Fourth Proportional to 228,382.10, 342,596.16 and 78,602.70

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Solution

The fourth proportional to 228,382.10, 342,596.16 and 78,602.70 is: 117,911.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,382.10 : 342,596.16 = 78,602.70 : x
  2. Step 2: Convert to fraction form
    228,382.10/342,596.16 = 78,602.70/x
  3. Step 3: Cross multiply
    228,382.10x = 342,596.16 × 78,602.70
  4. Step 4: Simplify right side
    228,382.10x = 26,928,983,185.63
  5. Step 5: Solve for x
    x = 26,928,983,185.63/228,382.10
  6. Step 6: Final answer
    x = 117,911.97

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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.