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Finding the Fourth Proportional to 638,154.29, 956,892.72 and 188,813.27

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Solution

The fourth proportional to 638,154.29, 956,892.72 and 188,813.27 is: 283,119.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,154.29 : 956,892.72 = 188,813.27 : x
  2. Step 2: Convert to fraction form
    638,154.29/956,892.72 = 188,813.27/x
  3. Step 3: Cross multiply
    638,154.29x = 956,892.72 × 188,813.27
  4. Step 4: Simplify right side
    638,154.29x = 180,674,043,502.39
  5. Step 5: Solve for x
    x = 180,674,043,502.39/638,154.29
  6. Step 6: Final answer
    x = 283,119.69

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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.