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Finding the Fourth Proportional to 123,158.60, 184,810.80 and 89,794.70

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Solution

The fourth proportional to 123,158.60, 184,810.80 and 89,794.70 is: 134,745.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,158.60 : 184,810.80 = 89,794.70 : x
  2. Step 2: Convert to fraction form
    123,158.60/184,810.80 = 89,794.70/x
  3. Step 3: Cross multiply
    123,158.60x = 184,810.80 × 89,794.70
  4. Step 4: Simplify right side
    123,158.60x = 16,595,030,342.76
  5. Step 5: Solve for x
    x = 16,595,030,342.76/123,158.60
  6. Step 6: Final answer
    x = 134,745.20

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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.