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Finding the Fourth Proportional to 51,863.60, 71,421.17 and 45,054.51

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Solution

The fourth proportional to 51,863.60, 71,421.17 and 45,054.51 is: 62,044.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,863.60 : 71,421.17 = 45,054.51 : x
  2. Step 2: Convert to fraction form
    51,863.60/71,421.17 = 45,054.51/x
  3. Step 3: Cross multiply
    51,863.60x = 71,421.17 × 45,054.51
  4. Step 4: Simplify right side
    51,863.60x = 3,217,845,592.70
  5. Step 5: Solve for x
    x = 3,217,845,592.70/51,863.60
  6. Step 6: Final answer
    x = 62,044.40

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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.