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Finding the Fourth Proportional to 311,888.92, 467,654.29 and 122,127.10

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Solution

The fourth proportional to 311,888.92, 467,654.29 and 122,127.10 is: 183,120.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,888.92 : 467,654.29 = 122,127.10 : x
  2. Step 2: Convert to fraction form
    311,888.92/467,654.29 = 122,127.10/x
  3. Step 3: Cross multiply
    311,888.92x = 467,654.29 × 122,127.10
  4. Step 4: Simplify right side
    311,888.92x = 57,113,262,240.26
  5. Step 5: Solve for x
    x = 57,113,262,240.26/311,888.92
  6. Step 6: Final answer
    x = 183,120.52

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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.