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Finding the Fourth Proportional to 469,979.69, 704,996.93 and 132,992.15

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Solution

The fourth proportional to 469,979.69, 704,996.93 and 132,992.15 is: 199,495.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,979.69 : 704,996.93 = 132,992.15 : x
  2. Step 2: Convert to fraction form
    469,979.69/704,996.93 = 132,992.15/x
  3. Step 3: Cross multiply
    469,979.69x = 704,996.93 × 132,992.15
  4. Step 4: Simplify right side
    469,979.69x = 93,759,054,271.60
  5. Step 5: Solve for x
    x = 93,759,054,271.60/469,979.69
  6. Step 6: Final answer
    x = 199,495.97

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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.