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Finding the Fourth Proportional to 136,437.50, 204,278.37 and 69,734.00

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Solution

The fourth proportional to 136,437.50, 204,278.37 and 69,734.00 is: 104,407.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,437.50 : 204,278.37 = 69,734.00 : x
  2. Step 2: Convert to fraction form
    136,437.50/204,278.37 = 69,734.00/x
  3. Step 3: Cross multiply
    136,437.50x = 204,278.37 × 69,734.00
  4. Step 4: Simplify right side
    136,437.50x = 14,245,146,832.19
  5. Step 5: Solve for x
    x = 14,245,146,832.19/136,437.50
  6. Step 6: Final answer
    x = 104,407.86

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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.