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Finding the Fourth Proportional to 146,890.36, 202,710 and 79,822.36

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Solution

The fourth proportional to 146,890.36, 202,710 and 79,822.36 is: 110,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,890.36 : 202,710 = 79,822.36 : x
  2. Step 2: Convert to fraction form
    146,890.36/202,710 = 79,822.36/x
  3. Step 3: Cross multiply
    146,890.36x = 202,710 × 79,822.36
  4. Step 4: Simplify right side
    146,890.36x = 16,180,790,595.60
  5. Step 5: Solve for x
    x = 16,180,790,595.60/146,890.36
  6. Step 6: Final answer
    x = 110,155.56

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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.