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Finding the Fourth Proportional to 157,191.73, 216,954.48 and 89,215.06

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Solution

The fourth proportional to 157,191.73, 216,954.48 and 89,215.06 is: 123,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,191.73 : 216,954.48 = 89,215.06 : x
  2. Step 2: Convert to fraction form
    157,191.73/216,954.48 = 89,215.06/x
  3. Step 3: Cross multiply
    157,191.73x = 216,954.48 × 89,215.06
  4. Step 4: Simplify right side
    157,191.73x = 19,355,606,504.39
  5. Step 5: Solve for x
    x = 19,355,606,504.39/157,191.73
  6. Step 6: Final answer
    x = 123,133.75

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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.