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Finding the Fourth Proportional to 251,497.25, 347,055.71 and 144,077.28

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Solution

The fourth proportional to 251,497.25, 347,055.71 and 144,077.28 is: 198,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,497.25 : 347,055.71 = 144,077.28 : x
  2. Step 2: Convert to fraction form
    251,497.25/347,055.71 = 144,077.28/x
  3. Step 3: Cross multiply
    251,497.25x = 347,055.71 × 144,077.28
  4. Step 4: Simplify right side
    251,497.25x = 50,002,843,851.26
  5. Step 5: Solve for x
    x = 50,002,843,851.26/251,497.25
  6. Step 6: Final answer
    x = 198,820.64

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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.