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Finding the Fourth Proportional to 60,411.09, 90,540.09 and 34,130.64

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Solution

The fourth proportional to 60,411.09, 90,540.09 and 34,130.64 is: 51,152.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,411.09 : 90,540.09 = 34,130.64 : x
  2. Step 2: Convert to fraction form
    60,411.09/90,540.09 = 34,130.64/x
  3. Step 3: Cross multiply
    60,411.09x = 90,540.09 × 34,130.64
  4. Step 4: Simplify right side
    60,411.09x = 3,090,191,217.36
  5. Step 5: Solve for x
    x = 3,090,191,217.36/60,411.09
  6. Step 6: Final answer
    x = 51,152.71

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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.