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Finding the Fourth Proportional to 152,647.90, 228,907.05 and 73,786.30

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Solution

The fourth proportional to 152,647.90, 228,907.05 and 73,786.30 is: 110,648.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,647.90 : 228,907.05 = 73,786.30 : x
  2. Step 2: Convert to fraction form
    152,647.90/228,907.05 = 73,786.30/x
  3. Step 3: Cross multiply
    152,647.90x = 228,907.05 × 73,786.30
  4. Step 4: Simplify right side
    152,647.90x = 16,890,204,263.42
  5. Step 5: Solve for x
    x = 16,890,204,263.42/152,647.90
  6. Step 6: Final answer
    x = 110,648.13

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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.