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Finding the Fourth Proportional to 183,712.80, 275,486.06 and 65,387.28

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Solution

The fourth proportional to 183,712.80, 275,486.06 and 65,387.28 is: 98,051.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,712.80 : 275,486.06 = 65,387.28 : x
  2. Step 2: Convert to fraction form
    183,712.80/275,486.06 = 65,387.28/x
  3. Step 3: Cross multiply
    183,712.80x = 275,486.06 × 65,387.28
  4. Step 4: Simplify right side
    183,712.80x = 18,013,284,141.32
  5. Step 5: Solve for x
    x = 18,013,284,141.32/183,712.80
  6. Step 6: Final answer
    x = 98,051.33

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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.