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Finding the Fourth Proportional to 168,666.45, 253,069.62 and 73,847.70

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Solution

The fourth proportional to 168,666.45, 253,069.62 and 73,847.70 is: 110,802.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,666.45 : 253,069.62 = 73,847.70 : x
  2. Step 2: Convert to fraction form
    168,666.45/253,069.62 = 73,847.70/x
  3. Step 3: Cross multiply
    168,666.45x = 253,069.62 × 73,847.70
  4. Step 4: Simplify right side
    168,666.45x = 18,688,609,099.95
  5. Step 5: Solve for x
    x = 18,688,609,099.95/168,666.45
  6. Step 6: Final answer
    x = 110,802.17

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1.5x scale

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.