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Finding the Fourth Proportional to 191,333, 287,045.58 and 60,005

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Solution

The fourth proportional to 191,333, 287,045.58 and 60,005 is: 90,021.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,333 : 287,045.58 = 60,005 : x
  2. Step 2: Convert to fraction form
    191,333/287,045.58 = 60,005/x
  3. Step 3: Cross multiply
    191,333x = 287,045.58 × 60,005
  4. Step 4: Simplify right side
    191,333x = 17,224,170,027.90
  5. Step 5: Solve for x
    x = 17,224,170,027.90/191,333
  6. Step 6: Final answer
    x = 90,021.95

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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.