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Finding the Fourth Proportional to 274,277.87, 411,268.87 and 124,436.40

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Solution

The fourth proportional to 274,277.87, 411,268.87 and 124,436.40 is: 186,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,277.87 : 411,268.87 = 124,436.40 : x
  2. Step 2: Convert to fraction form
    274,277.87/411,268.87 = 124,436.40/x
  3. Step 3: Cross multiply
    274,277.87x = 411,268.87 × 124,436.40
  4. Step 4: Simplify right side
    274,277.87x = 51,176,816,275.60
  5. Step 5: Solve for x
    x = 51,176,816,275.60/274,277.87
  6. Step 6: Final answer
    x = 186,587.48

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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.