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Finding the Fourth Proportional to 125,032.86, 187,418.04 and 89,953.38

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Solution

The fourth proportional to 125,032.86, 187,418.04 and 89,953.38 is: 134,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,032.86 : 187,418.04 = 89,953.38 : x
  2. Step 2: Convert to fraction form
    125,032.86/187,418.04 = 89,953.38/x
  3. Step 3: Cross multiply
    125,032.86x = 187,418.04 × 89,953.38
  4. Step 4: Simplify right side
    125,032.86x = 16,858,886,170.98
  5. Step 5: Solve for x
    x = 16,858,886,170.98/125,032.86
  6. Step 6: Final answer
    x = 134,835.64

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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.