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Finding the Fourth Proportional to 114,325.89, 171,513.90 and 38,421.71

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Solution

The fourth proportional to 114,325.89, 171,513.90 and 38,421.71 is: 57,640.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,325.89 : 171,513.90 = 38,421.71 : x
  2. Step 2: Convert to fraction form
    114,325.89/171,513.90 = 38,421.71/x
  3. Step 3: Cross multiply
    114,325.89x = 171,513.90 × 38,421.71
  4. Step 4: Simplify right side
    114,325.89x = 6,589,857,326.77
  5. Step 5: Solve for x
    x = 6,589,857,326.77/114,325.89
  6. Step 6: Final answer
    x = 57,640.99

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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.