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Finding the Fourth Proportional to 99,051.48, 148,601.25 and 56,958.48

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Solution

The fourth proportional to 99,051.48, 148,601.25 and 56,958.48 is: 85,451.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,051.48 : 148,601.25 = 56,958.48 : x
  2. Step 2: Convert to fraction form
    99,051.48/148,601.25 = 56,958.48/x
  3. Step 3: Cross multiply
    99,051.48x = 148,601.25 × 56,958.48
  4. Step 4: Simplify right side
    99,051.48x = 8,464,101,326.10
  5. Step 5: Solve for x
    x = 8,464,101,326.10/99,051.48
  6. Step 6: Final answer
    x = 85,451.54

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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.