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Finding the Fourth Proportional to 191,489.66, 264,083.70 and 119,876.20

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Solution

The fourth proportional to 191,489.66, 264,083.70 and 119,876.20 is: 165,321.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,489.66 : 264,083.70 = 119,876.20 : x
  2. Step 2: Convert to fraction form
    191,489.66/264,083.70 = 119,876.20/x
  3. Step 3: Cross multiply
    191,489.66x = 264,083.70 × 119,876.20
  4. Step 4: Simplify right side
    191,489.66x = 31,657,350,437.94
  5. Step 5: Solve for x
    x = 31,657,350,437.94/191,489.66
  6. Step 6: Final answer
    x = 165,321.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.