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Finding the Fourth Proportional to 108,995.68, 150,427.48 and 61,248

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Solution

The fourth proportional to 108,995.68, 150,427.48 and 61,248 is: 84,529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,995.68 : 150,427.48 = 61,248 : x
  2. Step 2: Convert to fraction form
    108,995.68/150,427.48 = 61,248/x
  3. Step 3: Cross multiply
    108,995.68x = 150,427.48 × 61,248
  4. Step 4: Simplify right side
    108,995.68x = 9,213,382,295.04
  5. Step 5: Solve for x
    x = 9,213,382,295.04/108,995.68
  6. Step 6: Final answer
    x = 84,529.79

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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.