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Finding the Fourth Proportional to 326,886.78, 451,079.50 and 183,670.68

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Solution

The fourth proportional to 326,886.78, 451,079.50 and 183,670.68 is: 253,451.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,886.78 : 451,079.50 = 183,670.68 : x
  2. Step 2: Convert to fraction form
    326,886.78/451,079.50 = 183,670.68/x
  3. Step 3: Cross multiply
    326,886.78x = 451,079.50 × 183,670.68
  4. Step 4: Simplify right side
    326,886.78x = 82,850,078,499.06
  5. Step 5: Solve for x
    x = 82,850,078,499.06/326,886.78
  6. Step 6: Final answer
    x = 253,451.91

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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.