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Finding the Fourth Proportional to 170,765.70, 239,421.90 and 170,765.70

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Solution

The fourth proportional to 170,765.70, 239,421.90 and 170,765.70 is: 239,421.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,765.70 : 239,421.90 = 170,765.70 : x
  2. Step 2: Convert to fraction form
    170,765.70/239,421.90 = 170,765.70/x
  3. Step 3: Cross multiply
    170,765.70x = 239,421.90 × 170,765.70
  4. Step 4: Simplify right side
    170,765.70x = 40,885,048,348.83
  5. Step 5: Solve for x
    x = 40,885,048,348.83/170,765.70
  6. Step 6: Final answer
    x = 239,421.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.