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Finding the Fourth Proportional to 74,911.58, 103,254.56 and 53,114.94

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Solution

The fourth proportional to 74,911.58, 103,254.56 and 53,114.94 is: 73,211.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,911.58 : 103,254.56 = 53,114.94 : x
  2. Step 2: Convert to fraction form
    74,911.58/103,254.56 = 53,114.94/x
  3. Step 3: Cross multiply
    74,911.58x = 103,254.56 × 53,114.94
  4. Step 4: Simplify right side
    74,911.58x = 5,484,359,493.55
  5. Step 5: Solve for x
    x = 5,484,359,493.55/74,911.58
  6. Step 6: Final answer
    x = 73,211.11

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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.