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Finding the Fourth Proportional to 56,734.60, 84,900.30 and 49,419.40

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Solution

The fourth proportional to 56,734.60, 84,900.30 and 49,419.40 is: 73,953.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,734.60 : 84,900.30 = 49,419.40 : x
  2. Step 2: Convert to fraction form
    56,734.60/84,900.30 = 49,419.40/x
  3. Step 3: Cross multiply
    56,734.60x = 84,900.30 × 49,419.40
  4. Step 4: Simplify right side
    56,734.60x = 4,195,721,885.82
  5. Step 5: Solve for x
    x = 4,195,721,885.82/56,734.60
  6. Step 6: Final answer
    x = 73,953.49

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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.