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Finding the Fourth Proportional to 107,215.40, 160,563.90 and 102,549.80

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Solution

The fourth proportional to 107,215.40, 160,563.90 and 102,549.80 is: 153,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,215.40 : 160,563.90 = 102,549.80 : x
  2. Step 2: Convert to fraction form
    107,215.40/160,563.90 = 102,549.80/x
  3. Step 3: Cross multiply
    107,215.40x = 160,563.90 × 102,549.80
  4. Step 4: Simplify right side
    107,215.40x = 16,465,795,832.22
  5. Step 5: Solve for x
    x = 16,465,795,832.22/107,215.40
  6. Step 6: Final answer
    x = 153,576.78

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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.