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Finding the Fourth Proportional to 56,773.80, 85,160.70 and 52,885.80

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Solution

The fourth proportional to 56,773.80, 85,160.70 and 52,885.80 is: 79,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,773.80 : 85,160.70 = 52,885.80 : x
  2. Step 2: Convert to fraction form
    56,773.80/85,160.70 = 52,885.80/x
  3. Step 3: Cross multiply
    56,773.80x = 85,160.70 × 52,885.80
  4. Step 4: Simplify right side
    56,773.80x = 4,503,791,748.06
  5. Step 5: Solve for x
    x = 4,503,791,748.06/56,773.80
  6. Step 6: Final answer
    x = 79,328.70

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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.