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Finding the Fourth Proportional to 247,840.01, 371,768.10 and 117,980.64

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Solution

The fourth proportional to 247,840.01, 371,768.10 and 117,980.64 is: 176,974.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,840.01 : 371,768.10 = 117,980.64 : x
  2. Step 2: Convert to fraction form
    247,840.01/371,768.10 = 117,980.64/x
  3. Step 3: Cross multiply
    247,840.01x = 371,768.10 × 117,980.64
  4. Step 4: Simplify right side
    247,840.01x = 43,861,437,779.68
  5. Step 5: Solve for x
    x = 43,861,437,779.68/247,840.01
  6. Step 6: Final answer
    x = 176,974.81

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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.