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Finding the Fourth Proportional to 105,195.51, 156,866.76 and 104,247.81

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Solution

The fourth proportional to 105,195.51, 156,866.76 and 104,247.81 is: 155,453.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,195.51 : 156,866.76 = 104,247.81 : x
  2. Step 2: Convert to fraction form
    105,195.51/156,866.76 = 104,247.81/x
  3. Step 3: Cross multiply
    105,195.51x = 156,866.76 × 104,247.81
  4. Step 4: Simplify right side
    105,195.51x = 16,353,016,191.80
  5. Step 5: Solve for x
    x = 16,353,016,191.80/105,195.51
  6. Step 6: Final answer
    x = 155,453.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.