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Finding the Fourth Proportional to 250,398.88, 345,516.64 and 142,962.08

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Solution

The fourth proportional to 250,398.88, 345,516.64 and 142,962.08 is: 197,268.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,398.88 : 345,516.64 = 142,962.08 : x
  2. Step 2: Convert to fraction form
    250,398.88/345,516.64 = 142,962.08/x
  3. Step 3: Cross multiply
    250,398.88x = 345,516.64 × 142,962.08
  4. Step 4: Simplify right side
    250,398.88x = 49,395,777,529.01
  5. Step 5: Solve for x
    x = 49,395,777,529.01/250,398.88
  6. Step 6: Final answer
    x = 197,268.36

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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.