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Finding the Fourth Proportional to 74,785.93, 112,085.34 and 37,356.45

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Solution

The fourth proportional to 74,785.93, 112,085.34 and 37,356.45 is: 55,987.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,785.93 : 112,085.34 = 37,356.45 : x
  2. Step 2: Convert to fraction form
    74,785.93/112,085.34 = 37,356.45/x
  3. Step 3: Cross multiply
    74,785.93x = 112,085.34 × 37,356.45
  4. Step 4: Simplify right side
    74,785.93x = 4,187,110,212.62
  5. Step 5: Solve for x
    x = 4,187,110,212.62/74,785.93
  6. Step 6: Final answer
    x = 55,987.94

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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.