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Finding the Fourth Proportional to 73,719.40, 110,579.10 and 65,554.60

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Solution

The fourth proportional to 73,719.40, 110,579.10 and 65,554.60 is: 98,331.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,719.40 : 110,579.10 = 65,554.60 : x
  2. Step 2: Convert to fraction form
    73,719.40/110,579.10 = 65,554.60/x
  3. Step 3: Cross multiply
    73,719.40x = 110,579.10 × 65,554.60
  4. Step 4: Simplify right side
    73,719.40x = 7,248,968,668.86
  5. Step 5: Solve for x
    x = 7,248,968,668.86/73,719.40
  6. Step 6: Final answer
    x = 98,331.90

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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.