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Finding the Fourth Proportional to 56,383.76, 84,453.84 and 53,071.34

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Solution

The fourth proportional to 56,383.76, 84,453.84 and 53,071.34 is: 79,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,383.76 : 84,453.84 = 53,071.34 : x
  2. Step 2: Convert to fraction form
    56,383.76/84,453.84 = 53,071.34/x
  3. Step 3: Cross multiply
    56,383.76x = 84,453.84 × 53,071.34
  4. Step 4: Simplify right side
    56,383.76x = 4,482,078,034.68
  5. Step 5: Solve for x
    x = 4,482,078,034.68/56,383.76
  6. Step 6: Final answer
    x = 79,492.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.