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Finding the Fourth Proportional to 79,986.54, 110,374.98 and 45,993.30

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Solution

The fourth proportional to 79,986.54, 110,374.98 and 45,993.30 is: 63,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,986.54 : 110,374.98 = 45,993.30 : x
  2. Step 2: Convert to fraction form
    79,986.54/110,374.98 = 45,993.30/x
  3. Step 3: Cross multiply
    79,986.54x = 110,374.98 × 45,993.30
  4. Step 4: Simplify right side
    79,986.54x = 5,076,509,567.63
  5. Step 5: Solve for x
    x = 5,076,509,567.63/79,986.54
  6. Step 6: Final answer
    x = 63,467.05

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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.