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Finding the Fourth Proportional to 191,889.40, 264,801.54 and 107,020.84

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Solution

The fourth proportional to 191,889.40, 264,801.54 and 107,020.84 is: 147,685.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,889.40 : 264,801.54 = 107,020.84 : x
  2. Step 2: Convert to fraction form
    191,889.40/264,801.54 = 107,020.84/x
  3. Step 3: Cross multiply
    191,889.40x = 264,801.54 × 107,020.84
  4. Step 4: Simplify right side
    191,889.40x = 28,339,283,244.09
  5. Step 5: Solve for x
    x = 28,339,283,244.09/191,889.40
  6. Step 6: Final answer
    x = 147,685.51

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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.