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Finding the Fourth Proportional to 202,615.02, 279,594.77 and 111,970.13

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Solution

The fourth proportional to 202,615.02, 279,594.77 and 111,970.13 is: 154,511.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,615.02 : 279,594.77 = 111,970.13 : x
  2. Step 2: Convert to fraction form
    202,615.02/279,594.77 = 111,970.13/x
  3. Step 3: Cross multiply
    202,615.02x = 279,594.77 × 111,970.13
  4. Step 4: Simplify right side
    202,615.02x = 31,306,260,786.40
  5. Step 5: Solve for x
    x = 31,306,260,786.40/202,615.02
  6. Step 6: Final answer
    x = 154,511.06

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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.