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Finding the Fourth Proportional to 103,955.01, 156,195.27 and 99,751.25

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Solution

The fourth proportional to 103,955.01, 156,195.27 and 99,751.25 is: 149,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,955.01 : 156,195.27 = 99,751.25 : x
  2. Step 2: Convert to fraction form
    103,955.01/156,195.27 = 99,751.25/x
  3. Step 3: Cross multiply
    103,955.01x = 156,195.27 × 99,751.25
  4. Step 4: Simplify right side
    103,955.01x = 15,580,673,426.59
  5. Step 5: Solve for x
    x = 15,580,673,426.59/103,955.01
  6. Step 6: Final answer
    x = 149,879.00

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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.