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Finding the Fourth Proportional to 96,014.70, 144,022.05 and 66,490.20

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Solution

The fourth proportional to 96,014.70, 144,022.05 and 66,490.20 is: 99,735.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,014.70 : 144,022.05 = 66,490.20 : x
  2. Step 2: Convert to fraction form
    96,014.70/144,022.05 = 66,490.20/x
  3. Step 3: Cross multiply
    96,014.70x = 144,022.05 × 66,490.20
  4. Step 4: Simplify right side
    96,014.70x = 9,576,054,908.91
  5. Step 5: Solve for x
    x = 9,576,054,908.91/96,014.70
  6. Step 6: Final answer
    x = 99,735.30

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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.