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Finding the Fourth Proportional to 500,666.69, 751,046.21 and 163,709.07

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Solution

The fourth proportional to 500,666.69, 751,046.21 and 163,709.07 is: 245,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,666.69 : 751,046.21 = 163,709.07 : x
  2. Step 2: Convert to fraction form
    500,666.69/751,046.21 = 163,709.07/x
  3. Step 3: Cross multiply
    500,666.69x = 751,046.21 × 163,709.07
  4. Step 4: Simplify right side
    500,666.69x = 122,953,075,747.58
  5. Step 5: Solve for x
    x = 122,953,075,747.58/500,666.69
  6. Step 6: Final answer
    x = 245,578.70

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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.