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Finding the Fourth Proportional to 124,339.74, 186,509.61 and 30,845.49

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Solution

The fourth proportional to 124,339.74, 186,509.61 and 30,845.49 is: 46,268.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,339.74 : 186,509.61 = 30,845.49 : x
  2. Step 2: Convert to fraction form
    124,339.74/186,509.61 = 30,845.49/x
  3. Step 3: Cross multiply
    124,339.74x = 186,509.61 × 30,845.49
  4. Step 4: Simplify right side
    124,339.74x = 5,752,980,310.16
  5. Step 5: Solve for x
    x = 5,752,980,310.16/124,339.74
  6. Step 6: Final answer
    x = 46,268.24

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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.