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Finding the Fourth Proportional to 102,479.55, 141,422.58 and 57,160.41

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Solution

The fourth proportional to 102,479.55, 141,422.58 and 57,160.41 is: 78,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,479.55 : 141,422.58 = 57,160.41 : x
  2. Step 2: Convert to fraction form
    102,479.55/141,422.58 = 57,160.41/x
  3. Step 3: Cross multiply
    102,479.55x = 141,422.58 × 57,160.41
  4. Step 4: Simplify right side
    102,479.55x = 8,083,772,656.06
  5. Step 5: Solve for x
    x = 8,083,772,656.06/102,479.55
  6. Step 6: Final answer
    x = 78,881.81

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