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Finding the Fourth Proportional to 122,875.40, 184,313.10 and 63,826.40

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Solution

The fourth proportional to 122,875.40, 184,313.10 and 63,826.40 is: 95,739.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,875.40 : 184,313.10 = 63,826.40 : x
  2. Step 2: Convert to fraction form
    122,875.40/184,313.10 = 63,826.40/x
  3. Step 3: Cross multiply
    122,875.40x = 184,313.10 × 63,826.40
  4. Step 4: Simplify right side
    122,875.40x = 11,764,041,645.84
  5. Step 5: Solve for x
    x = 11,764,041,645.84/122,875.40
  6. Step 6: Final answer
    x = 95,739.60

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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.