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Finding the Fourth Proportional to 99,573.73, 137,410.99 and 54,251.58

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Solution

The fourth proportional to 99,573.73, 137,410.99 and 54,251.58 is: 74,866.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,573.73 : 137,410.99 = 54,251.58 : x
  2. Step 2: Convert to fraction form
    99,573.73/137,410.99 = 54,251.58/x
  3. Step 3: Cross multiply
    99,573.73x = 137,410.99 × 54,251.58
  4. Step 4: Simplify right side
    99,573.73x = 7,454,763,316.86
  5. Step 5: Solve for x
    x = 7,454,763,316.86/99,573.73
  6. Step 6: Final answer
    x = 74,866.77

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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.