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Finding the Fourth Proportional to 107,763.80, 161,645.70 and 41,206.10

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Solution

The fourth proportional to 107,763.80, 161,645.70 and 41,206.10 is: 61,809.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,763.80 : 161,645.70 = 41,206.10 : x
  2. Step 2: Convert to fraction form
    107,763.80/161,645.70 = 41,206.10/x
  3. Step 3: Cross multiply
    107,763.80x = 161,645.70 × 41,206.10
  4. Step 4: Simplify right side
    107,763.80x = 6,660,788,878.77
  5. Step 5: Solve for x
    x = 6,660,788,878.77/107,763.80
  6. Step 6: Final answer
    x = 61,809.15

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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.