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Finding the Fourth Proportional to 103,069.60, 154,541.22 and 43,871.56

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Solution

The fourth proportional to 103,069.60, 154,541.22 and 43,871.56 is: 65,780.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,069.60 : 154,541.22 = 43,871.56 : x
  2. Step 2: Convert to fraction form
    103,069.60/154,541.22 = 43,871.56/x
  3. Step 3: Cross multiply
    103,069.60x = 154,541.22 × 43,871.56
  4. Step 4: Simplify right side
    103,069.60x = 6,779,964,405.70
  5. Step 5: Solve for x
    x = 6,779,964,405.70/103,069.60
  6. Step 6: Final answer
    x = 65,780.45

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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.