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Finding the Fourth Proportional to 216,647.60, 324,905.78 and 58,855.55

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Solution

The fourth proportional to 216,647.60, 324,905.78 and 58,855.55 is: 88,265.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,647.60 : 324,905.78 = 58,855.55 : x
  2. Step 2: Convert to fraction form
    216,647.60/324,905.78 = 58,855.55/x
  3. Step 3: Cross multiply
    216,647.60x = 324,905.78 × 58,855.55
  4. Step 4: Simplify right side
    216,647.60x = 19,122,506,902.69
  5. Step 5: Solve for x
    x = 19,122,506,902.69/216,647.60
  6. Step 6: Final answer
    x = 88,265.49

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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.