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Finding the Fourth Proportional to 107,969.40, 161,954.10 and 94,847.40

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Solution

The fourth proportional to 107,969.40, 161,954.10 and 94,847.40 is: 142,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,969.40 : 161,954.10 = 94,847.40 : x
  2. Step 2: Convert to fraction form
    107,969.40/161,954.10 = 94,847.40/x
  3. Step 3: Cross multiply
    107,969.40x = 161,954.10 × 94,847.40
  4. Step 4: Simplify right side
    107,969.40x = 15,360,925,304.34
  5. Step 5: Solve for x
    x = 15,360,925,304.34/107,969.40
  6. Step 6: Final answer
    x = 142,271.10

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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.