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Finding the Fourth Proportional to 61,742.48, 85,204.32 and 33,448.40

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Solution

The fourth proportional to 61,742.48, 85,204.32 and 33,448.40 is: 46,158.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,742.48 : 85,204.32 = 33,448.40 : x
  2. Step 2: Convert to fraction form
    61,742.48/85,204.32 = 33,448.40/x
  3. Step 3: Cross multiply
    61,742.48x = 85,204.32 × 33,448.40
  4. Step 4: Simplify right side
    61,742.48x = 2,849,948,177.09
  5. Step 5: Solve for x
    x = 2,849,948,177.09/61,742.48
  6. Step 6: Final answer
    x = 46,158.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.