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Finding the Fourth Proportional to 200,585.56, 300,509.27 and 125,691.74

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Solution

The fourth proportional to 200,585.56, 300,509.27 and 125,691.74 is: 188,306.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,585.56 : 300,509.27 = 125,691.74 : x
  2. Step 2: Convert to fraction form
    200,585.56/300,509.27 = 125,691.74/x
  3. Step 3: Cross multiply
    200,585.56x = 300,509.27 × 125,691.74
  4. Step 4: Simplify right side
    200,585.56x = 37,771,533,032.43
  5. Step 5: Solve for x
    x = 37,771,533,032.43/200,585.56
  6. Step 6: Final answer
    x = 188,306.35

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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.