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Finding the Fourth Proportional to 191,422.31, 287,174.99 and 58,299.12

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Solution

The fourth proportional to 191,422.31, 287,174.99 and 58,299.12 is: 87,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,422.31 : 287,174.99 = 58,299.12 : x
  2. Step 2: Convert to fraction form
    191,422.31/287,174.99 = 58,299.12/x
  3. Step 3: Cross multiply
    191,422.31x = 287,174.99 × 58,299.12
  4. Step 4: Simplify right side
    191,422.31x = 16,742,049,348.76
  5. Step 5: Solve for x
    x = 16,742,049,348.76/191,422.31
  6. Step 6: Final answer
    x = 87,461.33

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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.