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Finding the Fourth Proportional to 46,798.97, 70,194.49 and 20,143.89

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Solution

The fourth proportional to 46,798.97, 70,194.49 and 20,143.89 is: 30,214.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,798.97 : 70,194.49 = 20,143.89 : x
  2. Step 2: Convert to fraction form
    46,798.97/70,194.49 = 20,143.89/x
  3. Step 3: Cross multiply
    46,798.97x = 70,194.49 × 20,143.89
  4. Step 4: Simplify right side
    46,798.97x = 1,413,990,034.81
  5. Step 5: Solve for x
    x = 1,413,990,034.81/46,798.97
  6. Step 6: Final answer
    x = 30,214.13

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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.