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Finding the Fourth Proportional to 113,232.80, 169,849.20 and 28,992.80

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Solution

The fourth proportional to 113,232.80, 169,849.20 and 28,992.80 is: 43,489.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,232.80 : 169,849.20 = 28,992.80 : x
  2. Step 2: Convert to fraction form
    113,232.80/169,849.20 = 28,992.80/x
  3. Step 3: Cross multiply
    113,232.80x = 169,849.20 × 28,992.80
  4. Step 4: Simplify right side
    113,232.80x = 4,924,403,885.76
  5. Step 5: Solve for x
    x = 4,924,403,885.76/113,232.80
  6. Step 6: Final answer
    x = 43,489.20

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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.