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Finding the Fourth Proportional to 94,608.97, 130,424.74 and 74,430.86

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Solution

The fourth proportional to 94,608.97, 130,424.74 and 74,430.86 is: 102,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,608.97 : 130,424.74 = 74,430.86 : x
  2. Step 2: Convert to fraction form
    94,608.97/130,424.74 = 74,430.86/x
  3. Step 3: Cross multiply
    94,608.97x = 130,424.74 × 74,430.86
  4. Step 4: Simplify right side
    94,608.97x = 9,707,624,725.28
  5. Step 5: Solve for x
    x = 9,707,624,725.28/94,608.97
  6. Step 6: Final answer
    x = 102,607.87

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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.