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Finding the Fourth Proportional to 126,692.84, 190,011.58 and 42,464.84

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Solution

The fourth proportional to 126,692.84, 190,011.58 and 42,464.84 is: 63,687.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,692.84 : 190,011.58 = 42,464.84 : x
  2. Step 2: Convert to fraction form
    126,692.84/190,011.58 = 42,464.84/x
  3. Step 3: Cross multiply
    126,692.84x = 190,011.58 × 42,464.84
  4. Step 4: Simplify right side
    126,692.84x = 8,068,811,342.85
  5. Step 5: Solve for x
    x = 8,068,811,342.85/126,692.84
  6. Step 6: Final answer
    x = 63,687.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.