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Finding the Fourth Proportional to 343,962.66, 474,642.45 and 193,030.50

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Solution

The fourth proportional to 343,962.66, 474,642.45 and 193,030.50 is: 266,367.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,962.66 : 474,642.45 = 193,030.50 : x
  2. Step 2: Convert to fraction form
    343,962.66/474,642.45 = 193,030.50/x
  3. Step 3: Cross multiply
    343,962.66x = 474,642.45 × 193,030.50
  4. Step 4: Simplify right side
    343,962.66x = 91,620,469,444.73
  5. Step 5: Solve for x
    x = 91,620,469,444.73/343,962.66
  6. Step 6: Final answer
    x = 266,367.49

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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.