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Finding the Fourth Proportional to 74,969.58, 103,459.28 and 44,749.02

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Solution

The fourth proportional to 74,969.58, 103,459.28 and 44,749.02 is: 61,754.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,969.58 : 103,459.28 = 44,749.02 : x
  2. Step 2: Convert to fraction form
    74,969.58/103,459.28 = 44,749.02/x
  3. Step 3: Cross multiply
    74,969.58x = 103,459.28 × 44,749.02
  4. Step 4: Simplify right side
    74,969.58x = 4,629,701,389.91
  5. Step 5: Solve for x
    x = 4,629,701,389.91/74,969.58
  6. Step 6: Final answer
    x = 61,754.40

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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.