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Finding the Fourth Proportional to 323,522.40, 485,110.80 and 113,167.20

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Solution

The fourth proportional to 323,522.40, 485,110.80 and 113,167.20 is: 169,690.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,522.40 : 485,110.80 = 113,167.20 : x
  2. Step 2: Convert to fraction form
    323,522.40/485,110.80 = 113,167.20/x
  3. Step 3: Cross multiply
    323,522.40x = 485,110.80 × 113,167.20
  4. Step 4: Simplify right side
    323,522.40x = 54,898,630,925.76
  5. Step 5: Solve for x
    x = 54,898,630,925.76/323,522.40
  6. Step 6: Final answer
    x = 169,690.36

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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.