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Finding the Fourth Proportional to 152,636.90, 228,890.55 and 73,775.30

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Solution

The fourth proportional to 152,636.90, 228,890.55 and 73,775.30 is: 110,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,636.90 : 228,890.55 = 73,775.30 : x
  2. Step 2: Convert to fraction form
    152,636.90/228,890.55 = 73,775.30/x
  3. Step 3: Cross multiply
    152,636.90x = 228,890.55 × 73,775.30
  4. Step 4: Simplify right side
    152,636.90x = 16,886,468,993.42
  5. Step 5: Solve for x
    x = 16,886,468,993.42/152,636.90
  6. Step 6: Final answer
    x = 110,631.63

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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.