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Finding the Fourth Proportional to 161,344.80, 241,984.80 and 77,104.80

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Solution

The fourth proportional to 161,344.80, 241,984.80 and 77,104.80 is: 115,641.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,344.80 : 241,984.80 = 77,104.80 : x
  2. Step 2: Convert to fraction form
    161,344.80/241,984.80 = 77,104.80/x
  3. Step 3: Cross multiply
    161,344.80x = 241,984.80 × 77,104.80
  4. Step 4: Simplify right side
    161,344.80x = 18,658,189,607.04
  5. Step 5: Solve for x
    x = 18,658,189,607.04/161,344.80
  6. Step 6: Final answer
    x = 115,641.72

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1.5x scale

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.