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Finding the Fourth Proportional to 80,328.51, 110,840.81 and 46,338.28

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Solution

The fourth proportional to 80,328.51, 110,840.81 and 46,338.28 is: 63,939.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,328.51 : 110,840.81 = 46,338.28 : x
  2. Step 2: Convert to fraction form
    80,328.51/110,840.81 = 46,338.28/x
  3. Step 3: Cross multiply
    80,328.51x = 110,840.81 × 46,338.28
  4. Step 4: Simplify right side
    80,328.51x = 5,136,171,980.41
  5. Step 5: Solve for x
    x = 5,136,171,980.41/80,328.51
  6. Step 6: Final answer
    x = 63,939.59

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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.