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Finding the Fourth Proportional to 125,485.03, 188,129.13 and 58,890.88

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Solution

The fourth proportional to 125,485.03, 188,129.13 and 58,890.88 is: 88,290.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,485.03 : 188,129.13 = 58,890.88 : x
  2. Step 2: Convert to fraction form
    125,485.03/188,129.13 = 58,890.88/x
  3. Step 3: Cross multiply
    125,485.03x = 188,129.13 × 58,890.88
  4. Step 4: Simplify right side
    125,485.03x = 11,079,090,019.33
  5. Step 5: Solve for x
    x = 11,079,090,019.33/125,485.03
  6. Step 6: Final answer
    x = 88,290.13

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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.