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Finding the Fourth Proportional to 101,600.50, 140,176.29 and 65,817.94

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Solution

The fourth proportional to 101,600.50, 140,176.29 and 65,817.94 is: 90,807.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,600.50 : 140,176.29 = 65,817.94 : x
  2. Step 2: Convert to fraction form
    101,600.50/140,176.29 = 65,817.94/x
  3. Step 3: Cross multiply
    101,600.50x = 140,176.29 × 65,817.94
  4. Step 4: Simplify right side
    101,600.50x = 9,226,114,644.64
  5. Step 5: Solve for x
    x = 9,226,114,644.64/101,600.50
  6. Step 6: Final answer
    x = 90,807.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.