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Finding the Fourth Proportional to 190,949, 263,509.76 and 104,913.53

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Solution

The fourth proportional to 190,949, 263,509.76 and 104,913.53 is: 144,780.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,949 : 263,509.76 = 104,913.53 : x
  2. Step 2: Convert to fraction form
    190,949/263,509.76 = 104,913.53/x
  3. Step 3: Cross multiply
    190,949x = 263,509.76 × 104,913.53
  4. Step 4: Simplify right side
    190,949x = 27,645,739,111.05
  5. Step 5: Solve for x
    x = 27,645,739,111.05/190,949
  6. Step 6: Final answer
    x = 144,780.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.