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Finding the Fourth Proportional to 68,449.51, 102,424.48 and 40,383.01

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Solution

The fourth proportional to 68,449.51, 102,424.48 and 40,383.01 is: 60,427.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,449.51 : 102,424.48 = 40,383.01 : x
  2. Step 2: Convert to fraction form
    68,449.51/102,424.48 = 40,383.01/x
  3. Step 3: Cross multiply
    68,449.51x = 102,424.48 × 40,383.01
  4. Step 4: Simplify right side
    68,449.51x = 4,136,209,054.31
  5. Step 5: Solve for x
    x = 4,136,209,054.31/68,449.51
  6. Step 6: Final answer
    x = 60,427.15

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1.5x scale

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.