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Finding the Fourth Proportional to 106,673.46, 147,099.12 and 91,615.98

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Solution

The fourth proportional to 106,673.46, 147,099.12 and 91,615.98 is: 126,335.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,673.46 : 147,099.12 = 91,615.98 : x
  2. Step 2: Convert to fraction form
    106,673.46/147,099.12 = 91,615.98/x
  3. Step 3: Cross multiply
    106,673.46x = 147,099.12 × 91,615.98
  4. Step 4: Simplify right side
    106,673.46x = 13,476,630,035.94
  5. Step 5: Solve for x
    x = 13,476,630,035.94/106,673.46
  6. Step 6: Final answer
    x = 126,335.36

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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.