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Finding the Fourth Proportional to 289,235.51, 399,097.53 and 181,729.41

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Solution

The fourth proportional to 289,235.51, 399,097.53 and 181,729.41 is: 250,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,235.51 : 399,097.53 = 181,729.41 : x
  2. Step 2: Convert to fraction form
    289,235.51/399,097.53 = 181,729.41/x
  3. Step 3: Cross multiply
    289,235.51x = 399,097.53 × 181,729.41
  4. Step 4: Simplify right side
    289,235.51x = 72,527,757,162.74
  5. Step 5: Solve for x
    x = 72,527,757,162.74/289,235.51
  6. Step 6: Final answer
    x = 250,756.75

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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.