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Finding the Fourth Proportional to 108,241.71, 162,301.81 and 74,547.33

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Solution

The fourth proportional to 108,241.71, 162,301.81 and 74,547.33 is: 111,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,241.71 : 162,301.81 = 74,547.33 : x
  2. Step 2: Convert to fraction form
    108,241.71/162,301.81 = 74,547.33/x
  3. Step 3: Cross multiply
    108,241.71x = 162,301.81 × 74,547.33
  4. Step 4: Simplify right side
    108,241.71x = 12,099,166,589.67
  5. Step 5: Solve for x
    x = 12,099,166,589.67/108,241.71
  6. Step 6: Final answer
    x = 111,779.15

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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.