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Finding the Fourth Proportional to 238,928.84, 358,415.58 and 79,005.38

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Solution

The fourth proportional to 238,928.84, 358,415.58 and 79,005.38 is: 118,515.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,928.84 : 358,415.58 = 79,005.38 : x
  2. Step 2: Convert to fraction form
    238,928.84/358,415.58 = 79,005.38/x
  3. Step 3: Cross multiply
    238,928.84x = 358,415.58 × 79,005.38
  4. Step 4: Simplify right side
    238,928.84x = 28,316,757,600.01
  5. Step 5: Solve for x
    x = 28,316,757,600.01/238,928.84
  6. Step 6: Final answer
    x = 118,515.44

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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.