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Finding the Fourth Proportional to 76,094.62, 105,007.92 and 42,102.56

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Solution

The fourth proportional to 76,094.62, 105,007.92 and 42,102.56 is: 58,100.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,094.62 : 105,007.92 = 42,102.56 : x
  2. Step 2: Convert to fraction form
    76,094.62/105,007.92 = 42,102.56/x
  3. Step 3: Cross multiply
    76,094.62x = 105,007.92 × 42,102.56
  4. Step 4: Simplify right side
    76,094.62x = 4,421,102,252.28
  5. Step 5: Solve for x
    x = 4,421,102,252.28/76,094.62
  6. Step 6: Final answer
    x = 58,100.06

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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.