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Finding the Fourth Proportional to 125,055.74, 187,601.65 and 40,795.07

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Solution

The fourth proportional to 125,055.74, 187,601.65 and 40,795.07 is: 61,198.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,055.74 : 187,601.65 = 40,795.07 : x
  2. Step 2: Convert to fraction form
    125,055.74/187,601.65 = 40,795.07/x
  3. Step 3: Cross multiply
    125,055.74x = 187,601.65 × 40,795.07
  4. Step 4: Simplify right side
    125,055.74x = 7,653,221,403.87
  5. Step 5: Solve for x
    x = 7,653,221,403.87/125,055.74
  6. Step 6: Final answer
    x = 61,198.48

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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.