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Finding the Fourth Proportional to 133,064.96, 183,642.24 and 76,509.44

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Solution

The fourth proportional to 133,064.96, 183,642.24 and 76,509.44 is: 105,590.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,064.96 : 183,642.24 = 76,509.44 : x
  2. Step 2: Convert to fraction form
    133,064.96/183,642.24 = 76,509.44/x
  3. Step 3: Cross multiply
    133,064.96x = 183,642.24 × 76,509.44
  4. Step 4: Simplify right side
    133,064.96x = 14,050,364,942.75
  5. Step 5: Solve for x
    x = 14,050,364,942.75/133,064.96
  6. Step 6: Final answer
    x = 105,590.27

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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.