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Finding the Fourth Proportional to 122,873.94, 184,335.51 and 38,655.30

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Solution

The fourth proportional to 122,873.94, 184,335.51 and 38,655.30 is: 57,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,873.94 : 184,335.51 = 38,655.30 : x
  2. Step 2: Convert to fraction form
    122,873.94/184,335.51 = 38,655.30/x
  3. Step 3: Cross multiply
    122,873.94x = 184,335.51 × 38,655.30
  4. Step 4: Simplify right side
    122,873.94x = 7,125,543,518.03
  5. Step 5: Solve for x
    x = 7,125,543,518.03/122,873.94
  6. Step 6: Final answer
    x = 57,990.68

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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.