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Finding the Fourth Proportional to 79,365.15, 119,047.73 and 61,848.09

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Solution

The fourth proportional to 79,365.15, 119,047.73 and 61,848.09 is: 92,772.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,365.15 : 119,047.73 = 61,848.09 : x
  2. Step 2: Convert to fraction form
    79,365.15/119,047.73 = 61,848.09/x
  3. Step 3: Cross multiply
    79,365.15x = 119,047.73 × 61,848.09
  4. Step 4: Simplify right side
    79,365.15x = 7,362,874,410.10
  5. Step 5: Solve for x
    x = 7,362,874,410.10/79,365.15
  6. Step 6: Final answer
    x = 92,772.14

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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.