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Finding the Fourth Proportional to 108,969.40, 163,016.70 and 94,340.80

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Solution

The fourth proportional to 108,969.40, 163,016.70 and 94,340.80 is: 141,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,969.40 : 163,016.70 = 94,340.80 : x
  2. Step 2: Convert to fraction form
    108,969.40/163,016.70 = 94,340.80/x
  3. Step 3: Cross multiply
    108,969.40x = 163,016.70 × 94,340.80
  4. Step 4: Simplify right side
    108,969.40x = 15,379,125,891.36
  5. Step 5: Solve for x
    x = 15,379,125,891.36/108,969.40
  6. Step 6: Final answer
    x = 141,132.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.