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Finding the Fourth Proportional to 74,950.61, 103,419.56 and 44,319.45

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Solution

The fourth proportional to 74,950.61, 103,419.56 and 44,319.45 is: 61,153.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,950.61 : 103,419.56 = 44,319.45 : x
  2. Step 2: Convert to fraction form
    74,950.61/103,419.56 = 44,319.45/x
  3. Step 3: Cross multiply
    74,950.61x = 103,419.56 × 44,319.45
  4. Step 4: Simplify right side
    74,950.61x = 4,583,497,796.84
  5. Step 5: Solve for x
    x = 4,583,497,796.84/74,950.61
  6. Step 6: Final answer
    x = 61,153.58

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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.