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Finding the Fourth Proportional to 99,759.33, 137,655.47 and 63,464.94

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Solution

The fourth proportional to 99,759.33, 137,655.47 and 63,464.94 is: 87,573.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,759.33 : 137,655.47 = 63,464.94 : x
  2. Step 2: Convert to fraction form
    99,759.33/137,655.47 = 63,464.94/x
  3. Step 3: Cross multiply
    99,759.33x = 137,655.47 × 63,464.94
  4. Step 4: Simplify right side
    99,759.33x = 8,736,296,302.88
  5. Step 5: Solve for x
    x = 8,736,296,302.88/99,759.33
  6. Step 6: Final answer
    x = 87,573.73

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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.