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Finding the Fourth Proportional to 326,192, 450,145.76 and 190,319.36

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Solution

The fourth proportional to 326,192, 450,145.76 and 190,319.36 is: 262,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,192 : 450,145.76 = 190,319.36 : x
  2. Step 2: Convert to fraction form
    326,192/450,145.76 = 190,319.36/x
  3. Step 3: Cross multiply
    326,192x = 450,145.76 × 190,319.36
  4. Step 4: Simplify right side
    326,192x = 85,671,452,949.91
  5. Step 5: Solve for x
    x = 85,671,452,949.91/326,192
  6. Step 6: Final answer
    x = 262,641.18

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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.