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Finding the Fourth Proportional to 158,725.44, 218,985.12 and 97,450.56

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Solution

The fourth proportional to 158,725.44, 218,985.12 and 97,450.56 is: 134,447.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,725.44 : 218,985.12 = 97,450.56 : x
  2. Step 2: Convert to fraction form
    158,725.44/218,985.12 = 97,450.56/x
  3. Step 3: Cross multiply
    158,725.44x = 218,985.12 × 97,450.56
  4. Step 4: Simplify right side
    158,725.44x = 21,340,222,575.67
  5. Step 5: Solve for x
    x = 21,340,222,575.67/158,725.44
  6. Step 6: Final answer
    x = 134,447.40

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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.