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Finding the Fourth Proportional to 107,903.43, 161,886.74 and 55,349.55

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Solution

The fourth proportional to 107,903.43, 161,886.74 and 55,349.55 is: 83,040.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,903.43 : 161,886.74 = 55,349.55 : x
  2. Step 2: Convert to fraction form
    107,903.43/161,886.74 = 55,349.55/x
  3. Step 3: Cross multiply
    107,903.43x = 161,886.74 × 55,349.55
  4. Step 4: Simplify right side
    107,903.43x = 8,960,357,933.22
  5. Step 5: Solve for x
    x = 8,960,357,933.22/107,903.43
  6. Step 6: Final answer
    x = 83,040.53

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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.