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Finding the Fourth Proportional to 94,604.94, 130,419.16 and 74,426.78

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Solution

The fourth proportional to 94,604.94, 130,419.16 and 74,426.78 is: 102,602.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,604.94 : 130,419.16 = 74,426.78 : x
  2. Step 2: Convert to fraction form
    94,604.94/130,419.16 = 74,426.78/x
  3. Step 3: Cross multiply
    94,604.94x = 130,419.16 × 74,426.78
  4. Step 4: Simplify right side
    94,604.94x = 9,706,678,269.09
  5. Step 5: Solve for x
    x = 9,706,678,269.09/94,604.94
  6. Step 6: Final answer
    x = 102,602.23

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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.