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Finding the Fourth Proportional to 75,918.90, 104,780.90 and 44,106.25

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Solution

The fourth proportional to 75,918.90, 104,780.90 and 44,106.25 is: 60,874.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,918.90 : 104,780.90 = 44,106.25 : x
  2. Step 2: Convert to fraction form
    75,918.90/104,780.90 = 44,106.25/x
  3. Step 3: Cross multiply
    75,918.90x = 104,780.90 × 44,106.25
  4. Step 4: Simplify right side
    75,918.90x = 4,621,492,460.36
  5. Step 5: Solve for x
    x = 4,621,492,460.36/75,918.90
  6. Step 6: Final answer
    x = 60,874.07

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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.