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Finding the Fourth Proportional to 105,383.68, 158,075.52 and 43,054.18

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Solution

The fourth proportional to 105,383.68, 158,075.52 and 43,054.18 is: 64,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,383.68 : 158,075.52 = 43,054.18 : x
  2. Step 2: Convert to fraction form
    105,383.68/158,075.52 = 43,054.18/x
  3. Step 3: Cross multiply
    105,383.68x = 158,075.52 × 43,054.18
  4. Step 4: Simplify right side
    105,383.68x = 6,805,811,891.67
  5. Step 5: Solve for x
    x = 6,805,811,891.67/105,383.68
  6. Step 6: Final answer
    x = 64,581.27

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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.