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Finding the Fourth Proportional to 93,958.83, 129,575.10 and 74,901.81

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Solution

The fourth proportional to 93,958.83, 129,575.10 and 74,901.81 is: 103,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,958.83 : 129,575.10 = 74,901.81 : x
  2. Step 2: Convert to fraction form
    93,958.83/129,575.10 = 74,901.81/x
  3. Step 3: Cross multiply
    93,958.83x = 129,575.10 × 74,901.81
  4. Step 4: Simplify right side
    93,958.83x = 9,705,409,520.93
  5. Step 5: Solve for x
    x = 9,705,409,520.93/93,958.83
  6. Step 6: Final answer
    x = 103,294.28

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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.