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Finding the Fourth Proportional to 99,493.68, 137,252.34 and 73,918.56

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Solution

The fourth proportional to 99,493.68, 137,252.34 and 73,918.56 is: 101,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,493.68 : 137,252.34 = 73,918.56 : x
  2. Step 2: Convert to fraction form
    99,493.68/137,252.34 = 73,918.56/x
  3. Step 3: Cross multiply
    99,493.68x = 137,252.34 × 73,918.56
  4. Step 4: Simplify right side
    99,493.68x = 10,145,495,329.43
  5. Step 5: Solve for x
    x = 10,145,495,329.43/99,493.68
  6. Step 6: Final answer
    x = 101,971.25

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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.