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Finding the Fourth Proportional to 207,293.80, 310,710.30 and 113,866.60

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Solution

The fourth proportional to 207,293.80, 310,710.30 and 113,866.60 is: 170,673.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,293.80 : 310,710.30 = 113,866.60 : x
  2. Step 2: Convert to fraction form
    207,293.80/310,710.30 = 113,866.60/x
  3. Step 3: Cross multiply
    207,293.80x = 310,710.30 × 113,866.60
  4. Step 4: Simplify right side
    207,293.80x = 35,379,525,445.98
  5. Step 5: Solve for x
    x = 35,379,525,445.98/207,293.80
  6. Step 6: Final answer
    x = 170,673.34

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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.