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Finding the Fourth Proportional to 61,710.25, 85,160.19 and 33,415.96

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Solution

The fourth proportional to 61,710.25, 85,160.19 and 33,415.96 is: 46,114.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,710.25 : 85,160.19 = 33,415.96 : x
  2. Step 2: Convert to fraction form
    61,710.25/85,160.19 = 33,415.96/x
  3. Step 3: Cross multiply
    61,710.25x = 85,160.19 × 33,415.96
  4. Step 4: Simplify right side
    61,710.25x = 2,845,709,502.63
  5. Step 5: Solve for x
    x = 2,845,709,502.63/61,710.25
  6. Step 6: Final answer
    x = 46,114.05

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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.