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Finding the Fourth Proportional to 243,135.07, 364,673.88 and 65,655.90

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Solution

The fourth proportional to 243,135.07, 364,673.88 and 65,655.90 is: 98,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,135.07 : 364,673.88 = 65,655.90 : x
  2. Step 2: Convert to fraction form
    243,135.07/364,673.88 = 65,655.90/x
  3. Step 3: Cross multiply
    243,135.07x = 364,673.88 × 65,655.90
  4. Step 4: Simplify right side
    243,135.07x = 23,942,991,797.89
  5. Step 5: Solve for x
    x = 23,942,991,797.89/243,135.07
  6. Step 6: Final answer
    x = 98,476.09

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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.