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Finding the Fourth Proportional to 191,788.01, 287,671.65 and 58,668.28

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Solution

The fourth proportional to 191,788.01, 287,671.65 and 58,668.28 is: 87,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,788.01 : 287,671.65 = 58,668.28 : x
  2. Step 2: Convert to fraction form
    191,788.01/287,671.65 = 58,668.28/x
  3. Step 3: Cross multiply
    191,788.01x = 287,671.65 × 58,668.28
  4. Step 4: Simplify right side
    191,788.01x = 16,877,200,910.26
  5. Step 5: Solve for x
    x = 16,877,200,910.26/191,788.01
  6. Step 6: Final answer
    x = 87,999.25

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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.