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Finding the Fourth Proportional to 245,063.80, 367,449.90 and 126,965.80

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Solution

The fourth proportional to 245,063.80, 367,449.90 and 126,965.80 is: 190,373.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,063.80 : 367,449.90 = 126,965.80 : x
  2. Step 2: Convert to fraction form
    245,063.80/367,449.90 = 126,965.80/x
  3. Step 3: Cross multiply
    245,063.80x = 367,449.90 × 126,965.80
  4. Step 4: Simplify right side
    245,063.80x = 46,653,570,513.42
  5. Step 5: Solve for x
    x = 46,653,570,513.42/245,063.80
  6. Step 6: Final answer
    x = 190,373.16

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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.