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Finding the Fourth Proportional to 92,539.62, 127,735.92 and 56,240.91

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Solution

The fourth proportional to 92,539.62, 127,735.92 and 56,240.91 is: 77,631.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,539.62 : 127,735.92 = 56,240.91 : x
  2. Step 2: Convert to fraction form
    92,539.62/127,735.92 = 56,240.91/x
  3. Step 3: Cross multiply
    92,539.62x = 127,735.92 × 56,240.91
  4. Step 4: Simplify right side
    92,539.62x = 7,183,984,380.49
  5. Step 5: Solve for x
    x = 7,183,984,380.49/92,539.62
  6. Step 6: Final answer
    x = 77,631.44

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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.