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Finding the Fourth Proportional to 122,709.42, 184,064.04 and 39,603.42

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Solution

The fourth proportional to 122,709.42, 184,064.04 and 39,603.42 is: 59,405.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,709.42 : 184,064.04 = 39,603.42 : x
  2. Step 2: Convert to fraction form
    122,709.42/184,064.04 = 39,603.42/x
  3. Step 3: Cross multiply
    122,709.42x = 184,064.04 × 39,603.42
  4. Step 4: Simplify right side
    122,709.42x = 7,289,565,483.02
  5. Step 5: Solve for x
    x = 7,289,565,483.02/122,709.42
  6. Step 6: Final answer
    x = 59,405.10

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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.