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Finding the Fourth Proportional to 259,860.49, 358,607.47 and 140,628.49

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Solution

The fourth proportional to 259,860.49, 358,607.47 and 140,628.49 is: 194,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,860.49 : 358,607.47 = 140,628.49 : x
  2. Step 2: Convert to fraction form
    259,860.49/358,607.47 = 140,628.49/x
  3. Step 3: Cross multiply
    259,860.49x = 358,607.47 × 140,628.49
  4. Step 4: Simplify right side
    259,860.49x = 50,430,424,864.21
  5. Step 5: Solve for x
    x = 50,430,424,864.21/259,860.49
  6. Step 6: Final answer
    x = 194,067.31

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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.