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Finding the Fourth Proportional to 104,990.64, 157,483.80 and 34,870.56

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Solution

The fourth proportional to 104,990.64, 157,483.80 and 34,870.56 is: 52,305.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,990.64 : 157,483.80 = 34,870.56 : x
  2. Step 2: Convert to fraction form
    104,990.64/157,483.80 = 34,870.56/x
  3. Step 3: Cross multiply
    104,990.64x = 157,483.80 × 34,870.56
  4. Step 4: Simplify right side
    104,990.64x = 5,491,548,296.93
  5. Step 5: Solve for x
    x = 5,491,548,296.93/104,990.64
  6. Step 6: Final answer
    x = 52,305.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.