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Finding the Fourth Proportional to 238,846.79, 358,273.26 and 70,328.80

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Solution

The fourth proportional to 238,846.79, 358,273.26 and 70,328.80 is: 105,494.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,846.79 : 358,273.26 = 70,328.80 : x
  2. Step 2: Convert to fraction form
    238,846.79/358,273.26 = 70,328.80/x
  3. Step 3: Cross multiply
    238,846.79x = 358,273.26 × 70,328.80
  4. Step 4: Simplify right side
    238,846.79x = 25,196,926,480.70
  5. Step 5: Solve for x
    x = 25,196,926,480.70/238,846.79
  6. Step 6: Final answer
    x = 105,494.10

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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.