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Finding the Fourth Proportional to 188,546.40, 282,911.76 and 88,716.51

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Solution

The fourth proportional to 188,546.40, 282,911.76 and 88,716.51 is: 133,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,546.40 : 282,911.76 = 88,716.51 : x
  2. Step 2: Convert to fraction form
    188,546.40/282,911.76 = 88,716.51/x
  3. Step 3: Cross multiply
    188,546.40x = 282,911.76 × 88,716.51
  4. Step 4: Simplify right side
    188,546.40x = 25,098,943,985.16
  5. Step 5: Solve for x
    x = 25,098,943,985.16/188,546.40
  6. Step 6: Final answer
    x = 133,118.13

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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.