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Finding the Fourth Proportional to 109,873.80, 164,810.70 and 96,751.80

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Solution

The fourth proportional to 109,873.80, 164,810.70 and 96,751.80 is: 145,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,873.80 : 164,810.70 = 96,751.80 : x
  2. Step 2: Convert to fraction form
    109,873.80/164,810.70 = 96,751.80/x
  3. Step 3: Cross multiply
    109,873.80x = 164,810.70 × 96,751.80
  4. Step 4: Simplify right side
    109,873.80x = 15,945,731,884.26
  5. Step 5: Solve for x
    x = 15,945,731,884.26/109,873.80
  6. Step 6: Final answer
    x = 145,127.70

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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.