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Finding the Fourth Proportional to 99,599.92, 137,446.08 and 54,278.28

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Solution

The fourth proportional to 99,599.92, 137,446.08 and 54,278.28 is: 74,903.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,599.92 : 137,446.08 = 54,278.28 : x
  2. Step 2: Convert to fraction form
    99,599.92/137,446.08 = 54,278.28/x
  3. Step 3: Cross multiply
    99,599.92x = 137,446.08 × 54,278.28
  4. Step 4: Simplify right side
    99,599.92x = 7,460,336,815.14
  5. Step 5: Solve for x
    x = 7,460,336,815.14/99,599.92
  6. Step 6: Final answer
    x = 74,903.04

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1.5x scale

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.