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Finding the Fourth Proportional to 139,212.44, 208,549.84 and 83,097.26

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Solution

The fourth proportional to 139,212.44, 208,549.84 and 83,097.26 is: 124,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,212.44 : 208,549.84 = 83,097.26 : x
  2. Step 2: Convert to fraction form
    139,212.44/208,549.84 = 83,097.26/x
  3. Step 3: Cross multiply
    139,212.44x = 208,549.84 × 83,097.26
  4. Step 4: Simplify right side
    139,212.44x = 17,329,920,277.44
  5. Step 5: Solve for x
    x = 17,329,920,277.44/139,212.44
  6. Step 6: Final answer
    x = 124,485.43

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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.