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Finding the Fourth Proportional to 204,716.76, 307,075.14 and 79,970.28

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Solution

The fourth proportional to 204,716.76, 307,075.14 and 79,970.28 is: 119,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,716.76 : 307,075.14 = 79,970.28 : x
  2. Step 2: Convert to fraction form
    204,716.76/307,075.14 = 79,970.28/x
  3. Step 3: Cross multiply
    204,716.76x = 307,075.14 × 79,970.28
  4. Step 4: Simplify right side
    204,716.76x = 24,556,884,926.84
  5. Step 5: Solve for x
    x = 24,556,884,926.84/204,716.76
  6. Step 6: Final answer
    x = 119,955.42

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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.