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Finding the Fourth Proportional to 92,762.28, 139,162.14 and 39,454.20

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Solution

The fourth proportional to 92,762.28, 139,162.14 and 39,454.20 is: 59,189.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,762.28 : 139,162.14 = 39,454.20 : x
  2. Step 2: Convert to fraction form
    92,762.28/139,162.14 = 39,454.20/x
  3. Step 3: Cross multiply
    92,762.28x = 139,162.14 × 39,454.20
  4. Step 4: Simplify right side
    92,762.28x = 5,490,530,903.99
  5. Step 5: Solve for x
    x = 5,490,530,903.99/92,762.28
  6. Step 6: Final answer
    x = 59,189.26

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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.