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Finding the Fourth Proportional to 92,225.20, 138,337.80 and 83,477.20

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Solution

The fourth proportional to 92,225.20, 138,337.80 and 83,477.20 is: 125,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,225.20 : 138,337.80 = 83,477.20 : x
  2. Step 2: Convert to fraction form
    92,225.20/138,337.80 = 83,477.20/x
  3. Step 3: Cross multiply
    92,225.20x = 138,337.80 × 83,477.20
  4. Step 4: Simplify right side
    92,225.20x = 11,548,052,198.16
  5. Step 5: Solve for x
    x = 11,548,052,198.16/92,225.20
  6. Step 6: Final answer
    x = 125,215.80

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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.