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Finding the Fourth Proportional to 213,926.01, 320,884.70 and 73,681.53

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Solution

The fourth proportional to 213,926.01, 320,884.70 and 73,681.53 is: 110,520.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,926.01 : 320,884.70 = 73,681.53 : x
  2. Step 2: Convert to fraction form
    213,926.01/320,884.70 = 73,681.53/x
  3. Step 3: Cross multiply
    213,926.01x = 320,884.70 × 73,681.53
  4. Step 4: Simplify right side
    213,926.01x = 23,643,275,281.18
  5. Step 5: Solve for x
    x = 23,643,275,281.18/213,926.01
  6. Step 6: Final answer
    x = 110,520.81

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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.