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Finding the Fourth Proportional to 122,871.52, 184,350.84 and 70,325.20

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Solution

The fourth proportional to 122,871.52, 184,350.84 and 70,325.20 is: 105,512.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,871.52 : 184,350.84 = 70,325.20 : x
  2. Step 2: Convert to fraction form
    122,871.52/184,350.84 = 70,325.20/x
  3. Step 3: Cross multiply
    122,871.52x = 184,350.84 × 70,325.20
  4. Step 4: Simplify right side
    122,871.52x = 12,964,509,693.17
  5. Step 5: Solve for x
    x = 12,964,509,693.17/122,871.52
  6. Step 6: Final answer
    x = 105,512.73

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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.