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Finding the Fourth Proportional to 191,996.81, 287,999.36 and 58,874.12

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Solution

The fourth proportional to 191,996.81, 287,999.36 and 58,874.12 is: 88,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,996.81 : 287,999.36 = 58,874.12 : x
  2. Step 2: Convert to fraction form
    191,996.81/287,999.36 = 58,874.12/x
  3. Step 3: Cross multiply
    191,996.81x = 287,999.36 × 58,874.12
  4. Step 4: Simplify right side
    191,996.81x = 16,955,707,146.20
  5. Step 5: Solve for x
    x = 16,955,707,146.20/191,996.81
  6. Step 6: Final answer
    x = 88,312.44

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1.5x scale

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.