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Finding the Fourth Proportional to 123,055.60, 184,656.30 and 89,691.70

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Solution

The fourth proportional to 123,055.60, 184,656.30 and 89,691.70 is: 134,590.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,055.60 : 184,656.30 = 89,691.70 : x
  2. Step 2: Convert to fraction form
    123,055.60/184,656.30 = 89,691.70/x
  3. Step 3: Cross multiply
    123,055.60x = 184,656.30 × 89,691.70
  4. Step 4: Simplify right side
    123,055.60x = 16,562,137,462.71
  5. Step 5: Solve for x
    x = 16,562,137,462.71/123,055.60
  6. Step 6: Final answer
    x = 134,590.68

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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.