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Finding the Fourth Proportional to 112,174.99, 168,294.29 and 45,662.86

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Solution

The fourth proportional to 112,174.99, 168,294.29 and 45,662.86 is: 68,507.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,174.99 : 168,294.29 = 45,662.86 : x
  2. Step 2: Convert to fraction form
    112,174.99/168,294.29 = 45,662.86/x
  3. Step 3: Cross multiply
    112,174.99x = 168,294.29 × 45,662.86
  4. Step 4: Simplify right side
    112,174.99x = 7,684,798,603.07
  5. Step 5: Solve for x
    x = 7,684,798,603.07/112,174.99
  6. Step 6: Final answer
    x = 68,507.24

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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.