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Finding the Fourth Proportional to 192,066.80, 287,927.40 and 125,538.80

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Solution

The fourth proportional to 192,066.80, 287,927.40 and 125,538.80 is: 188,195.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,066.80 : 287,927.40 = 125,538.80 : x
  2. Step 2: Convert to fraction form
    192,066.80/287,927.40 = 125,538.80/x
  3. Step 3: Cross multiply
    192,066.80x = 287,927.40 × 125,538.80
  4. Step 4: Simplify right side
    192,066.80x = 36,146,060,283.12
  5. Step 5: Solve for x
    x = 36,146,060,283.12/192,066.80
  6. Step 6: Final answer
    x = 188,195.25

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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.