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Finding the Fourth Proportional to 191,750.40, 287,668.80 and 58,636.80

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Solution

The fourth proportional to 191,750.40, 287,668.80 and 58,636.80 is: 87,968.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,750.40 : 287,668.80 = 58,636.80 : x
  2. Step 2: Convert to fraction form
    191,750.40/287,668.80 = 58,636.80/x
  3. Step 3: Cross multiply
    191,750.40x = 287,668.80 × 58,636.80
  4. Step 4: Simplify right side
    191,750.40x = 16,867,977,891.84
  5. Step 5: Solve for x
    x = 16,867,977,891.84/191,750.40
  6. Step 6: Final answer
    x = 87,968.41

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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.