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Finding the Fourth Proportional to 160,494.58, 240,630.90 and 70,493.86

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Solution

The fourth proportional to 160,494.58, 240,630.90 and 70,493.86 is: 105,692.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,494.58 : 240,630.90 = 70,493.86 : x
  2. Step 2: Convert to fraction form
    160,494.58/240,630.90 = 70,493.86/x
  3. Step 3: Cross multiply
    160,494.58x = 240,630.90 × 70,493.86
  4. Step 4: Simplify right side
    160,494.58x = 16,963,000,976.27
  5. Step 5: Solve for x
    x = 16,963,000,976.27/160,494.58
  6. Step 6: Final answer
    x = 105,692.05

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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.