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Finding the Fourth Proportional to 74,657.64, 103,020.69 and 44,438.16

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Solution

The fourth proportional to 74,657.64, 103,020.69 and 44,438.16 is: 61,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,657.64 : 103,020.69 = 44,438.16 : x
  2. Step 2: Convert to fraction form
    74,657.64/103,020.69 = 44,438.16/x
  3. Step 3: Cross multiply
    74,657.64x = 103,020.69 × 44,438.16
  4. Step 4: Simplify right side
    74,657.64x = 4,578,049,905.53
  5. Step 5: Solve for x
    x = 4,578,049,905.53/74,657.64
  6. Step 6: Final answer
    x = 61,320.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.