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Finding the Fourth Proportional to 73,316.80, 110,266.80 and 65,735.20

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Solution

The fourth proportional to 73,316.80, 110,266.80 and 65,735.20 is: 98,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,316.80 : 110,266.80 = 65,735.20 : x
  2. Step 2: Convert to fraction form
    73,316.80/110,266.80 = 65,735.20/x
  3. Step 3: Cross multiply
    73,316.80x = 110,266.80 × 65,735.20
  4. Step 4: Simplify right side
    73,316.80x = 7,248,410,151.36
  5. Step 5: Solve for x
    x = 7,248,410,151.36/73,316.80
  6. Step 6: Final answer
    x = 98,864.25

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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.