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Finding the Fourth Proportional to 251,615.64, 347,237.90 and 144,206.27

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Solution

The fourth proportional to 251,615.64, 347,237.90 and 144,206.27 is: 199,009.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,615.64 : 347,237.90 = 144,206.27 : x
  2. Step 2: Convert to fraction form
    251,615.64/347,237.90 = 144,206.27/x
  3. Step 3: Cross multiply
    251,615.64x = 347,237.90 × 144,206.27
  4. Step 4: Simplify right side
    251,615.64x = 50,073,879,904.41
  5. Step 5: Solve for x
    x = 50,073,879,904.41/251,615.64
  6. Step 6: Final answer
    x = 199,009.41

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1.5x scale

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.