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Finding the Fourth Proportional to 61,149.68, 84,387.48 and 35,655.36

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Solution

The fourth proportional to 61,149.68, 84,387.48 and 35,655.36 is: 49,204.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,149.68 : 84,387.48 = 35,655.36 : x
  2. Step 2: Convert to fraction form
    61,149.68/84,387.48 = 35,655.36/x
  3. Step 3: Cross multiply
    61,149.68x = 84,387.48 × 35,655.36
  4. Step 4: Simplify right side
    61,149.68x = 3,008,865,978.89
  5. Step 5: Solve for x
    x = 3,008,865,978.89/61,149.68
  6. Step 6: Final answer
    x = 49,204.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.