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Finding the Fourth Proportional to 100,309.81, 150,484.39 and 37,130.48

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Solution

The fourth proportional to 100,309.81, 150,484.39 and 37,130.48 is: 55,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,309.81 : 150,484.39 = 37,130.48 : x
  2. Step 2: Convert to fraction form
    100,309.81/150,484.39 = 37,130.48/x
  3. Step 3: Cross multiply
    100,309.81x = 150,484.39 × 37,130.48
  4. Step 4: Simplify right side
    100,309.81x = 5,587,557,633.21
  5. Step 5: Solve for x
    x = 5,587,557,633.21/100,309.81
  6. Step 6: Final answer
    x = 55,703.01

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1.5x scale

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.