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Finding the Fourth Proportional to 161,971, 223,539.48 and 94,903

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Solution

The fourth proportional to 161,971, 223,539.48 and 94,903 is: 130,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,971 : 223,539.48 = 94,903 : x
  2. Step 2: Convert to fraction form
    161,971/223,539.48 = 94,903/x
  3. Step 3: Cross multiply
    161,971x = 223,539.48 × 94,903
  4. Step 4: Simplify right side
    161,971x = 21,214,567,270.44
  5. Step 5: Solve for x
    x = 21,214,567,270.44/161,971
  6. Step 6: Final answer
    x = 130,977.57

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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.