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Finding the Fourth Proportional to 256,249.69, 353,646.44 and 143,094.31

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Solution

The fourth proportional to 256,249.69, 353,646.44 and 143,094.31 is: 197,482.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,249.69 : 353,646.44 = 143,094.31 : x
  2. Step 2: Convert to fraction form
    256,249.69/353,646.44 = 143,094.31/x
  3. Step 3: Cross multiply
    256,249.69x = 353,646.44 × 143,094.31
  4. Step 4: Simplify right side
    256,249.69x = 50,604,792,252.77
  5. Step 5: Solve for x
    x = 50,604,792,252.77/256,249.69
  6. Step 6: Final answer
    x = 197,482.36

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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.