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Finding the Fourth Proportional to 134,328.82, 201,485.94 and 40,827.28

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Solution

The fourth proportional to 134,328.82, 201,485.94 and 40,827.28 is: 61,238.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,328.82 : 201,485.94 = 40,827.28 : x
  2. Step 2: Convert to fraction form
    134,328.82/201,485.94 = 40,827.28/x
  3. Step 3: Cross multiply
    134,328.82x = 201,485.94 × 40,827.28
  4. Step 4: Simplify right side
    134,328.82x = 8,226,123,392.16
  5. Step 5: Solve for x
    x = 8,226,123,392.16/134,328.82
  6. Step 6: Final answer
    x = 61,238.71

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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.