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Finding the Fourth Proportional to 73,296.55, 109,780.80 and 63,455.05

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Solution

The fourth proportional to 73,296.55, 109,780.80 and 63,455.05 is: 95,040.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,296.55 : 109,780.80 = 63,455.05 : x
  2. Step 2: Convert to fraction form
    73,296.55/109,780.80 = 63,455.05/x
  3. Step 3: Cross multiply
    73,296.55x = 109,780.80 × 63,455.05
  4. Step 4: Simplify right side
    73,296.55x = 6,966,146,153.04
  5. Step 5: Solve for x
    x = 6,966,146,153.04/73,296.55
  6. Step 6: Final answer
    x = 95,040.57

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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.