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Finding the Fourth Proportional to 170,679.45, 239,301.15 and 170,679.45

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Solution

The fourth proportional to 170,679.45, 239,301.15 and 170,679.45 is: 239,301.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,679.45 : 239,301.15 = 170,679.45 : x
  2. Step 2: Convert to fraction form
    170,679.45/239,301.15 = 170,679.45/x
  3. Step 3: Cross multiply
    170,679.45x = 239,301.15 × 170,679.45
  4. Step 4: Simplify right side
    170,679.45x = 40,843,788,666.37
  5. Step 5: Solve for x
    x = 40,843,788,666.37/170,679.45
  6. Step 6: Final answer
    x = 239,301.15

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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.