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Finding the Fourth Proportional to 229,980.98, 344,947.20 and 61,518.30

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Solution

The fourth proportional to 229,980.98, 344,947.20 and 61,518.30 is: 92,270.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,980.98 : 344,947.20 = 61,518.30 : x
  2. Step 2: Convert to fraction form
    229,980.98/344,947.20 = 61,518.30/x
  3. Step 3: Cross multiply
    229,980.98x = 344,947.20 × 61,518.30
  4. Step 4: Simplify right side
    229,980.98x = 21,220,565,749.84
  5. Step 5: Solve for x
    x = 21,220,565,749.84/229,980.98
  6. Step 6: Final answer
    x = 92,270.96

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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.