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Finding the Fourth Proportional to 48,885.60, 73,263.60 and 43,312.80

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Solution

The fourth proportional to 48,885.60, 73,263.60 and 43,312.80 is: 64,911.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,885.60 : 73,263.60 = 43,312.80 : x
  2. Step 2: Convert to fraction form
    48,885.60/73,263.60 = 43,312.80/x
  3. Step 3: Cross multiply
    48,885.60x = 73,263.60 × 43,312.80
  4. Step 4: Simplify right side
    48,885.60x = 3,173,251,654.08
  5. Step 5: Solve for x
    x = 3,173,251,654.08/48,885.60
  6. Step 6: Final answer
    x = 64,911.79

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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.