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Finding the Fourth Proportional to 79,655.67, 109,911.96 and 45,657.90

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Solution

The fourth proportional to 79,655.67, 109,911.96 and 45,657.90 is: 63,000.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,655.67 : 109,911.96 = 45,657.90 : x
  2. Step 2: Convert to fraction form
    79,655.67/109,911.96 = 45,657.90/x
  3. Step 3: Cross multiply
    79,655.67x = 109,911.96 × 45,657.90
  4. Step 4: Simplify right side
    79,655.67x = 5,018,348,731.56
  5. Step 5: Solve for x
    x = 5,018,348,731.56/79,655.67
  6. Step 6: Final answer
    x = 63,000.52

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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.