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Finding the Fourth Proportional to 95,457, 143,157.96 and 28,881.48

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Solution

The fourth proportional to 95,457, 143,157.96 and 28,881.48 is: 43,313.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,457 : 143,157.96 = 28,881.48 : x
  2. Step 2: Convert to fraction form
    95,457/143,157.96 = 28,881.48/x
  3. Step 3: Cross multiply
    95,457x = 143,157.96 × 28,881.48
  4. Step 4: Simplify right side
    95,457x = 4,134,613,758.58
  5. Step 5: Solve for x
    x = 4,134,613,758.58/95,457
  6. Step 6: Final answer
    x = 43,313.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.