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Finding the Fourth Proportional to 136,216.26, 187,973.71 and 74,956.73

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Solution

The fourth proportional to 136,216.26, 187,973.71 and 74,956.73 is: 103,437.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,216.26 : 187,973.71 = 74,956.73 : x
  2. Step 2: Convert to fraction form
    136,216.26/187,973.71 = 74,956.73/x
  3. Step 3: Cross multiply
    136,216.26x = 187,973.71 × 74,956.73
  4. Step 4: Simplify right side
    136,216.26x = 14,089,893,500.31
  5. Step 5: Solve for x
    x = 14,089,893,500.31/136,216.26
  6. Step 6: Final answer
    x = 103,437.68

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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.