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Finding the Fourth Proportional to 253,181.69, 349,393.07 and 140,006.33

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Solution

The fourth proportional to 253,181.69, 349,393.07 and 140,006.33 is: 193,210.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,181.69 : 349,393.07 = 140,006.33 : x
  2. Step 2: Convert to fraction form
    253,181.69/349,393.07 = 140,006.33/x
  3. Step 3: Cross multiply
    253,181.69x = 349,393.07 × 140,006.33
  4. Step 4: Simplify right side
    253,181.69x = 48,917,240,758.10
  5. Step 5: Solve for x
    x = 48,917,240,758.10/253,181.69
  6. Step 6: Final answer
    x = 193,210.03

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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.