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Finding the Fourth Proportional to 158,378.40, 237,493.36 and 91,837.44

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Solution

The fourth proportional to 158,378.40, 237,493.36 and 91,837.44 is: 137,713.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,378.40 : 237,493.36 = 91,837.44 : x
  2. Step 2: Convert to fraction form
    158,378.40/237,493.36 = 91,837.44/x
  3. Step 3: Cross multiply
    158,378.40x = 237,493.36 × 91,837.44
  4. Step 4: Simplify right side
    158,378.40x = 21,810,782,199.40
  5. Step 5: Solve for x
    x = 21,810,782,199.40/158,378.40
  6. Step 6: Final answer
    x = 137,713.11

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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.