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Finding the Fourth Proportional to 108,955.40, 150,372.46 and 61,208.80

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Solution

The fourth proportional to 108,955.40, 150,372.46 and 61,208.80 is: 84,476.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,955.40 : 150,372.46 = 61,208.80 : x
  2. Step 2: Convert to fraction form
    108,955.40/150,372.46 = 61,208.80/x
  3. Step 3: Cross multiply
    108,955.40x = 150,372.46 × 61,208.80
  4. Step 4: Simplify right side
    108,955.40x = 9,204,117,676.63
  5. Step 5: Solve for x
    x = 9,204,117,676.63/108,955.40
  6. Step 6: Final answer
    x = 84,476.01

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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.