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Finding the Fourth Proportional to 73,656.63, 110,533.37 and 40,400

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Solution

The fourth proportional to 73,656.63, 110,533.37 and 40,400 is: 60,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,656.63 : 110,533.37 = 40,400 : x
  2. Step 2: Convert to fraction form
    73,656.63/110,533.37 = 40,400/x
  3. Step 3: Cross multiply
    73,656.63x = 110,533.37 × 40,400
  4. Step 4: Simplify right side
    73,656.63x = 4,465,547,946
  5. Step 5: Solve for x
    x = 4,465,547,946/73,656.63
  6. Step 6: Final answer
    x = 60,626.56

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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.