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Finding the Fourth Proportional to 191,889.36, 264,800.84 and 105,851.78

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Solution

The fourth proportional to 191,889.36, 264,800.84 and 105,851.78 is: 146,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,889.36 : 264,800.84 = 105,851.78 : x
  2. Step 2: Convert to fraction form
    191,889.36/264,800.84 = 105,851.78/x
  3. Step 3: Cross multiply
    191,889.36x = 264,800.84 × 105,851.78
  4. Step 4: Simplify right side
    191,889.36x = 28,029,640,259.50
  5. Step 5: Solve for x
    x = 28,029,640,259.50/191,889.36
  6. Step 6: Final answer
    x = 146,071.88

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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.