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Finding the Fourth Proportional to 108,997.86, 150,420.84 and 61,250.24

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Solution

The fourth proportional to 108,997.86, 150,420.84 and 61,250.24 is: 84,527.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,997.86 : 150,420.84 = 61,250.24 : x
  2. Step 2: Convert to fraction form
    108,997.86/150,420.84 = 61,250.24/x
  3. Step 3: Cross multiply
    108,997.86x = 150,420.84 × 61,250.24
  4. Step 4: Simplify right side
    108,997.86x = 9,213,312,551.00
  5. Step 5: Solve for x
    x = 9,213,312,551.00/108,997.86
  6. Step 6: Final answer
    x = 84,527.46

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1.5x scale

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.