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Finding the Fourth Proportional to 61,709.52, 85,159.18 and 33,415.14

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Solution

The fourth proportional to 61,709.52, 85,159.18 and 33,415.14 is: 46,112.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,709.52 : 85,159.18 = 33,415.14 : x
  2. Step 2: Convert to fraction form
    61,709.52/85,159.18 = 33,415.14/x
  3. Step 3: Cross multiply
    61,709.52x = 85,159.18 × 33,415.14
  4. Step 4: Simplify right side
    61,709.52x = 2,845,605,921.99
  5. Step 5: Solve for x
    x = 2,845,605,921.99/61,709.52
  6. Step 6: Final answer
    x = 46,112.92

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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.