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Finding the Fourth Proportional to 240,615.40, 360,923.10 and 165,965.80

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Solution

The fourth proportional to 240,615.40, 360,923.10 and 165,965.80 is: 248,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,615.40 : 360,923.10 = 165,965.80 : x
  2. Step 2: Convert to fraction form
    240,615.40/360,923.10 = 165,965.80/x
  3. Step 3: Cross multiply
    240,615.40x = 360,923.10 × 165,965.80
  4. Step 4: Simplify right side
    240,615.40x = 59,900,891,029.98
  5. Step 5: Solve for x
    x = 59,900,891,029.98/240,615.40
  6. Step 6: Final answer
    x = 248,948.70

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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.