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Finding the Fourth Proportional to 108,412.59, 162,578.43 and 37,315.11

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Solution

The fourth proportional to 108,412.59, 162,578.43 and 37,315.11 is: 55,958.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,412.59 : 162,578.43 = 37,315.11 : x
  2. Step 2: Convert to fraction form
    108,412.59/162,578.43 = 37,315.11/x
  3. Step 3: Cross multiply
    108,412.59x = 162,578.43 × 37,315.11
  4. Step 4: Simplify right side
    108,412.59x = 6,066,631,999.08
  5. Step 5: Solve for x
    x = 6,066,631,999.08/108,412.59
  6. Step 6: Final answer
    x = 55,958.74

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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.