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Finding the Fourth Proportional to 123,261.60, 184,762.80 and 48,352.80

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Solution

The fourth proportional to 123,261.60, 184,762.80 and 48,352.80 is: 72,478.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,261.60 : 184,762.80 = 48,352.80 : x
  2. Step 2: Convert to fraction form
    123,261.60/184,762.80 = 48,352.80/x
  3. Step 3: Cross multiply
    123,261.60x = 184,762.80 × 48,352.80
  4. Step 4: Simplify right side
    123,261.60x = 8,933,798,715.84
  5. Step 5: Solve for x
    x = 8,933,798,715.84/123,261.60
  6. Step 6: Final answer
    x = 72,478.36

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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.