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Finding the Fourth Proportional to 99,253.68, 148,796.78 and 43,051.47

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Solution

The fourth proportional to 99,253.68, 148,796.78 and 43,051.47 is: 64,540.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,253.68 : 148,796.78 = 43,051.47 : x
  2. Step 2: Convert to fraction form
    99,253.68/148,796.78 = 43,051.47/x
  3. Step 3: Cross multiply
    99,253.68x = 148,796.78 × 43,051.47
  4. Step 4: Simplify right side
    99,253.68x = 6,405,920,110.27
  5. Step 5: Solve for x
    x = 6,405,920,110.27/99,253.68
  6. Step 6: Final answer
    x = 64,540.89

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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.