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Finding the Fourth Proportional to 104,810.81, 144,640.22 and 57,064.14

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Solution

The fourth proportional to 104,810.81, 144,640.22 and 57,064.14 is: 78,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,810.81 : 144,640.22 = 57,064.14 : x
  2. Step 2: Convert to fraction form
    104,810.81/144,640.22 = 57,064.14/x
  3. Step 3: Cross multiply
    104,810.81x = 144,640.22 × 57,064.14
  4. Step 4: Simplify right side
    104,810.81x = 8,253,769,478.39
  5. Step 5: Solve for x
    x = 8,253,769,478.39/104,810.81
  6. Step 6: Final answer
    x = 78,749.22

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1.5x scale

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.