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Finding the Fourth Proportional to 418,567.81, 627,837.63 and 181,910.51

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Solution

The fourth proportional to 418,567.81, 627,837.63 and 181,910.51 is: 272,859.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,567.81 : 627,837.63 = 181,910.51 : x
  2. Step 2: Convert to fraction form
    418,567.81/627,837.63 = 181,910.51/x
  3. Step 3: Cross multiply
    418,567.81x = 627,837.63 × 181,910.51
  4. Step 4: Simplify right side
    418,567.81x = 114,210,263,470.49
  5. Step 5: Solve for x
    x = 114,210,263,470.49/418,567.81
  6. Step 6: Final answer
    x = 272,859.64

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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.