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Finding the Fourth Proportional to 228,743.70, 319,619.10 and 228,743.70

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Solution

The fourth proportional to 228,743.70, 319,619.10 and 228,743.70 is: 319,619.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,743.70 : 319,619.10 = 228,743.70 : x
  2. Step 2: Convert to fraction form
    228,743.70/319,619.10 = 228,743.70/x
  3. Step 3: Cross multiply
    228,743.70x = 319,619.10 × 228,743.70
  4. Step 4: Simplify right side
    228,743.70x = 73,110,855,524.67
  5. Step 5: Solve for x
    x = 73,110,855,524.67/228,743.70
  6. Step 6: Final answer
    x = 319,619.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.