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Finding the Fourth Proportional to 79,718.49, 110,007.49 and 43,907.73

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Solution

The fourth proportional to 79,718.49, 110,007.49 and 43,907.73 is: 60,590.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,718.49 : 110,007.49 = 43,907.73 : x
  2. Step 2: Convert to fraction form
    79,718.49/110,007.49 = 43,907.73/x
  3. Step 3: Cross multiply
    79,718.49x = 110,007.49 × 43,907.73
  4. Step 4: Simplify right side
    79,718.49x = 4,830,179,168.90
  5. Step 5: Solve for x
    x = 4,830,179,168.90/79,718.49
  6. Step 6: Final answer
    x = 60,590.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.