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Finding the Fourth Proportional to 191,774.76, 287,634.41 and 58,619.27

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Solution

The fourth proportional to 191,774.76, 287,634.41 and 58,619.27 is: 87,920.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,774.76 : 287,634.41 = 58,619.27 : x
  2. Step 2: Convert to fraction form
    191,774.76/287,634.41 = 58,619.27/x
  3. Step 3: Cross multiply
    191,774.76x = 287,634.41 × 58,619.27
  4. Step 4: Simplify right side
    191,774.76x = 16,860,917,409.81
  5. Step 5: Solve for x
    x = 16,860,917,409.81/191,774.76
  6. Step 6: Final answer
    x = 87,920.42

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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.