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Finding the Fourth Proportional to 117,477.99, 162,045.87 and 69,697.50

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Solution

The fourth proportional to 117,477.99, 162,045.87 and 69,697.50 is: 96,138.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,477.99 : 162,045.87 = 69,697.50 : x
  2. Step 2: Convert to fraction form
    117,477.99/162,045.87 = 69,697.50/x
  3. Step 3: Cross multiply
    117,477.99x = 162,045.87 × 69,697.50
  4. Step 4: Simplify right side
    117,477.99x = 11,294,192,024.33
  5. Step 5: Solve for x
    x = 11,294,192,024.33/117,477.99
  6. Step 6: Final answer
    x = 96,138.79

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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.