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Finding the Fourth Proportional to 107,752.80, 161,636.40 and 36,674.40

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Solution

The fourth proportional to 107,752.80, 161,636.40 and 36,674.40 is: 55,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,752.80 : 161,636.40 = 36,674.40 : x
  2. Step 2: Convert to fraction form
    107,752.80/161,636.40 = 36,674.40/x
  3. Step 3: Cross multiply
    107,752.80x = 161,636.40 × 36,674.40
  4. Step 4: Simplify right side
    107,752.80x = 5,927,917,988.16
  5. Step 5: Solve for x
    x = 5,927,917,988.16/107,752.80
  6. Step 6: Final answer
    x = 55,014.05

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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.