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Finding the Fourth Proportional to 124,661.95, 186,992.93 and 31,167.70

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Solution

The fourth proportional to 124,661.95, 186,992.93 and 31,167.70 is: 46,751.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,661.95 : 186,992.93 = 31,167.70 : x
  2. Step 2: Convert to fraction form
    124,661.95/186,992.93 = 31,167.70/x
  3. Step 3: Cross multiply
    124,661.95x = 186,992.93 × 31,167.70
  4. Step 4: Simplify right side
    124,661.95x = 5,828,140,118.97
  5. Step 5: Solve for x
    x = 5,828,140,118.97/124,661.95
  6. Step 6: Final answer
    x = 46,751.55

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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.