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Finding the Fourth Proportional to 125,957.52, 188,931.78 and 54,880.02

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Solution

The fourth proportional to 125,957.52, 188,931.78 and 54,880.02 is: 82,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,957.52 : 188,931.78 = 54,880.02 : x
  2. Step 2: Convert to fraction form
    125,957.52/188,931.78 = 54,880.02/x
  3. Step 3: Cross multiply
    125,957.52x = 188,931.78 × 54,880.02
  4. Step 4: Simplify right side
    125,957.52x = 10,368,579,865.04
  5. Step 5: Solve for x
    x = 10,368,579,865.04/125,957.52
  6. Step 6: Final answer
    x = 82,318.07

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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.