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Finding the Fourth Proportional to 97,555.80, 146,246.10 and 38,431.80

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Solution

The fourth proportional to 97,555.80, 146,246.10 and 38,431.80 is: 57,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,555.80 : 146,246.10 = 38,431.80 : x
  2. Step 2: Convert to fraction form
    97,555.80/146,246.10 = 38,431.80/x
  3. Step 3: Cross multiply
    97,555.80x = 146,246.10 × 38,431.80
  4. Step 4: Simplify right side
    97,555.80x = 5,620,500,865.98
  5. Step 5: Solve for x
    x = 5,620,500,865.98/97,555.80
  6. Step 6: Final answer
    x = 57,613.19

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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.