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Finding the Fourth Proportional to 207,003.80, 310,505.70 and 169,606.10

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Solution

The fourth proportional to 207,003.80, 310,505.70 and 169,606.10 is: 254,409.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,003.80 : 310,505.70 = 169,606.10 : x
  2. Step 2: Convert to fraction form
    207,003.80/310,505.70 = 169,606.10/x
  3. Step 3: Cross multiply
    207,003.80x = 310,505.70 × 169,606.10
  4. Step 4: Simplify right side
    207,003.80x = 52,663,660,804.77
  5. Step 5: Solve for x
    x = 52,663,660,804.77/207,003.80
  6. Step 6: Final answer
    x = 254,409.15

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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.