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Finding the Fourth Proportional to 191,665.16, 264,318.53 and 151,474.94

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Solution

The fourth proportional to 191,665.16, 264,318.53 and 151,474.94 is: 208,893.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,665.16 : 264,318.53 = 151,474.94 : x
  2. Step 2: Convert to fraction form
    191,665.16/264,318.53 = 151,474.94/x
  3. Step 3: Cross multiply
    191,665.16x = 264,318.53 × 151,474.94
  4. Step 4: Simplify right side
    191,665.16x = 40,037,632,384.87
  5. Step 5: Solve for x
    x = 40,037,632,384.87/191,665.16
  6. Step 6: Final answer
    x = 208,893.63

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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.