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Finding the Fourth Proportional to 318,773.49, 439,907.00 and 175,533.90

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Solution

The fourth proportional to 318,773.49, 439,907.00 and 175,533.90 is: 242,236.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,773.49 : 439,907.00 = 175,533.90 : x
  2. Step 2: Convert to fraction form
    318,773.49/439,907.00 = 175,533.90/x
  3. Step 3: Cross multiply
    318,773.49x = 439,907.00 × 175,533.90
  4. Step 4: Simplify right side
    318,773.49x = 77,218,590,469.63
  5. Step 5: Solve for x
    x = 77,218,590,469.63/318,773.49
  6. Step 6: Final answer
    x = 242,236.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.