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Finding the Fourth Proportional to 74,908.40, 103,373.60 and 41,374.40

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Solution

The fourth proportional to 74,908.40, 103,373.60 and 41,374.40 is: 57,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,908.40 : 103,373.60 = 41,374.40 : x
  2. Step 2: Convert to fraction form
    74,908.40/103,373.60 = 41,374.40/x
  3. Step 3: Cross multiply
    74,908.40x = 103,373.60 × 41,374.40
  4. Step 4: Simplify right side
    74,908.40x = 4,277,020,675.84
  5. Step 5: Solve for x
    x = 4,277,020,675.84/74,908.40
  6. Step 6: Final answer
    x = 57,096.68

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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.