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Finding the Fourth Proportional to 260,974.71, 360,128.05 and 153,523.98

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Solution

The fourth proportional to 260,974.71, 360,128.05 and 153,523.98 is: 211,853.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,974.71 : 360,128.05 = 153,523.98 : x
  2. Step 2: Convert to fraction form
    260,974.71/360,128.05 = 153,523.98/x
  3. Step 3: Cross multiply
    260,974.71x = 360,128.05 × 153,523.98
  4. Step 4: Simplify right side
    260,974.71x = 55,288,292,606.48
  5. Step 5: Solve for x
    x = 55,288,292,606.48/260,974.71
  6. Step 6: Final answer
    x = 211,853.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.