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Finding the Fourth Proportional to 61,398.66, 92,405.53 and 55,284.63

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Solution

The fourth proportional to 61,398.66, 92,405.53 and 55,284.63 is: 83,203.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,398.66 : 92,405.53 = 55,284.63 : x
  2. Step 2: Convert to fraction form
    61,398.66/92,405.53 = 55,284.63/x
  3. Step 3: Cross multiply
    61,398.66x = 92,405.53 × 55,284.63
  4. Step 4: Simplify right side
    61,398.66x = 5,108,605,414.08
  5. Step 5: Solve for x
    x = 5,108,605,414.08/61,398.66
  6. Step 6: Final answer
    x = 83,203.86

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.