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Finding the Fourth Proportional to 73,823.60, 110,735.40 and 73,386.20

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Solution

The fourth proportional to 73,823.60, 110,735.40 and 73,386.20 is: 110,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,823.60 : 110,735.40 = 73,386.20 : x
  2. Step 2: Convert to fraction form
    73,823.60/110,735.40 = 73,386.20/x
  3. Step 3: Cross multiply
    73,823.60x = 110,735.40 × 73,386.20
  4. Step 4: Simplify right side
    73,823.60x = 8,126,450,211.48
  5. Step 5: Solve for x
    x = 8,126,450,211.48/73,823.60
  6. Step 6: Final answer
    x = 110,079.30

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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.