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Finding the Fourth Proportional to 497,218.80, 745,828.20 and 123,241.80

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Solution

The fourth proportional to 497,218.80, 745,828.20 and 123,241.80 is: 184,862.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,218.80 : 745,828.20 = 123,241.80 : x
  2. Step 2: Convert to fraction form
    497,218.80/745,828.20 = 123,241.80/x
  3. Step 3: Cross multiply
    497,218.80x = 745,828.20 × 123,241.80
  4. Step 4: Simplify right side
    497,218.80x = 91,917,209,858.76
  5. Step 5: Solve for x
    x = 91,917,209,858.76/497,218.80
  6. Step 6: Final answer
    x = 184,862.70

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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.