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Finding the Fourth Proportional to 161,955, 223,517.40 and 94,887

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Solution

The fourth proportional to 161,955, 223,517.40 and 94,887 is: 130,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,955 : 223,517.40 = 94,887 : x
  2. Step 2: Convert to fraction form
    161,955/223,517.40 = 94,887/x
  3. Step 3: Cross multiply
    161,955x = 223,517.40 × 94,887
  4. Step 4: Simplify right side
    161,955x = 21,208,895,533.80
  5. Step 5: Solve for x
    x = 21,208,895,533.80/161,955
  6. Step 6: Final answer
    x = 130,955.48

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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.