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Finding the Fourth Proportional to 88,472.96, 122,212.12 and 70,692.64

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Solution

The fourth proportional to 88,472.96, 122,212.12 and 70,692.64 is: 97,651.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,472.96 : 122,212.12 = 70,692.64 : x
  2. Step 2: Convert to fraction form
    88,472.96/122,212.12 = 70,692.64/x
  3. Step 3: Cross multiply
    88,472.96x = 122,212.12 × 70,692.64
  4. Step 4: Simplify right side
    88,472.96x = 8,639,497,402.80
  5. Step 5: Solve for x
    x = 8,639,497,402.80/88,472.96
  6. Step 6: Final answer
    x = 97,651.28

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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.