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Finding the Fourth Proportional to 107,362.80, 161,044.20 and 67,964.40

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Solution

The fourth proportional to 107,362.80, 161,044.20 and 67,964.40 is: 101,946.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,362.80 : 161,044.20 = 67,964.40 : x
  2. Step 2: Convert to fraction form
    107,362.80/161,044.20 = 67,964.40/x
  3. Step 3: Cross multiply
    107,362.80x = 161,044.20 × 67,964.40
  4. Step 4: Simplify right side
    107,362.80x = 10,945,272,426.48
  5. Step 5: Solve for x
    x = 10,945,272,426.48/107,362.80
  6. Step 6: Final answer
    x = 101,946.60

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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.