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Finding the Fourth Proportional to 107,460.80, 161,133.60 and 45,060.80

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Solution

The fourth proportional to 107,460.80, 161,133.60 and 45,060.80 is: 67,567.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,460.80 : 161,133.60 = 45,060.80 : x
  2. Step 2: Convert to fraction form
    107,460.80/161,133.60 = 45,060.80/x
  3. Step 3: Cross multiply
    107,460.80x = 161,133.60 × 45,060.80
  4. Step 4: Simplify right side
    107,460.80x = 7,260,808,922.88
  5. Step 5: Solve for x
    x = 7,260,808,922.88/107,460.80
  6. Step 6: Final answer
    x = 67,567.05

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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.