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Finding the Fourth Proportional to 229,739.94, 344,609.71 and 71,980.70

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Solution

The fourth proportional to 229,739.94, 344,609.71 and 71,980.70 is: 107,970.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,739.94 : 344,609.71 = 71,980.70 : x
  2. Step 2: Convert to fraction form
    229,739.94/344,609.71 = 71,980.70/x
  3. Step 3: Cross multiply
    229,739.94x = 344,609.71 × 71,980.70
  4. Step 4: Simplify right side
    229,739.94x = 24,805,246,249.60
  5. Step 5: Solve for x
    x = 24,805,246,249.60/229,739.94
  6. Step 6: Final answer
    x = 107,970.98

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1.5x scale

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.