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Finding the Fourth Proportional to 122,692.64, 184,038.62 and 38,459.20

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Solution

The fourth proportional to 122,692.64, 184,038.62 and 38,459.20 is: 57,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,692.64 : 184,038.62 = 38,459.20 : x
  2. Step 2: Convert to fraction form
    122,692.64/184,038.62 = 38,459.20/x
  3. Step 3: Cross multiply
    122,692.64x = 184,038.62 × 38,459.20
  4. Step 4: Simplify right side
    122,692.64x = 7,077,978,094.30
  5. Step 5: Solve for x
    x = 7,077,978,094.30/122,692.64
  6. Step 6: Final answer
    x = 57,688.69

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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.