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Finding the Fourth Proportional to 242,592.60, 363,791.70 and 84,739.80

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Solution

The fourth proportional to 242,592.60, 363,791.70 and 84,739.80 is: 127,075.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,592.60 : 363,791.70 = 84,739.80 : x
  2. Step 2: Convert to fraction form
    242,592.60/363,791.70 = 84,739.80/x
  3. Step 3: Cross multiply
    242,592.60x = 363,791.70 × 84,739.80
  4. Step 4: Simplify right side
    242,592.60x = 30,827,635,899.66
  5. Step 5: Solve for x
    x = 30,827,635,899.66/242,592.60
  6. Step 6: Final answer
    x = 127,075.75

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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.