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Finding the Fourth Proportional to 76,202.93, 105,172.02 and 45,992.54

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Solution

The fourth proportional to 76,202.93, 105,172.02 and 45,992.54 is: 63,476.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,202.93 : 105,172.02 = 45,992.54 : x
  2. Step 2: Convert to fraction form
    76,202.93/105,172.02 = 45,992.54/x
  3. Step 3: Cross multiply
    76,202.93x = 105,172.02 × 45,992.54
  4. Step 4: Simplify right side
    76,202.93x = 4,837,127,810.87
  5. Step 5: Solve for x
    x = 4,837,127,810.87/76,202.93
  6. Step 6: Final answer
    x = 63,476.93

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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.