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Finding the Fourth Proportional to 73,166.70, 109,750.05 and 17,762.70

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Solution

The fourth proportional to 73,166.70, 109,750.05 and 17,762.70 is: 26,644.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,166.70 : 109,750.05 = 17,762.70 : x
  2. Step 2: Convert to fraction form
    73,166.70/109,750.05 = 17,762.70/x
  3. Step 3: Cross multiply
    73,166.70x = 109,750.05 × 17,762.70
  4. Step 4: Simplify right side
    73,166.70x = 1,949,457,213.14
  5. Step 5: Solve for x
    x = 1,949,457,213.14/73,166.70
  6. Step 6: Final answer
    x = 26,644.05

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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.