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Finding the Fourth Proportional to 254,489.76, 351,211.68 and 141,313.32

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Solution

The fourth proportional to 254,489.76, 351,211.68 and 141,313.32 is: 195,021.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,489.76 : 351,211.68 = 141,313.32 : x
  2. Step 2: Convert to fraction form
    254,489.76/351,211.68 = 141,313.32/x
  3. Step 3: Cross multiply
    254,489.76x = 351,211.68 × 141,313.32
  4. Step 4: Simplify right side
    254,489.76x = 49,630,888,523.58
  5. Step 5: Solve for x
    x = 49,630,888,523.58/254,489.76
  6. Step 6: Final answer
    x = 195,021.16

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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.