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Finding the Fourth Proportional to 108,998.76, 150,416.28 and 61,251.42

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Solution

The fourth proportional to 108,998.76, 150,416.28 and 61,251.42 is: 84,525.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,998.76 : 150,416.28 = 61,251.42 : x
  2. Step 2: Convert to fraction form
    108,998.76/150,416.28 = 61,251.42/x
  3. Step 3: Cross multiply
    108,998.76x = 150,416.28 × 61,251.42
  4. Step 4: Simplify right side
    108,998.76x = 9,213,210,741.12
  5. Step 5: Solve for x
    x = 9,213,210,741.12/108,998.76
  6. Step 6: Final answer
    x = 84,525.83

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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.