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Finding the Fourth Proportional to 125,484.93, 188,229.62 and 45,579.59

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Solution

The fourth proportional to 125,484.93, 188,229.62 and 45,579.59 is: 68,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,484.93 : 188,229.62 = 45,579.59 : x
  2. Step 2: Convert to fraction form
    125,484.93/188,229.62 = 45,579.59/x
  3. Step 3: Cross multiply
    125,484.93x = 188,229.62 × 45,579.59
  4. Step 4: Simplify right side
    125,484.93x = 8,579,428,254.72
  5. Step 5: Solve for x
    x = 8,579,428,254.72/125,484.93
  6. Step 6: Final answer
    x = 68,370.19

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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.