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Finding the Fourth Proportional to 88,938.60, 133,364.70 and 49,453.80

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Solution

The fourth proportional to 88,938.60, 133,364.70 and 49,453.80 is: 74,156.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,938.60 : 133,364.70 = 49,453.80 : x
  2. Step 2: Convert to fraction form
    88,938.60/133,364.70 = 49,453.80/x
  3. Step 3: Cross multiply
    88,938.60x = 133,364.70 × 49,453.80
  4. Step 4: Simplify right side
    88,938.60x = 6,595,391,200.86
  5. Step 5: Solve for x
    x = 6,595,391,200.86/88,938.60
  6. Step 6: Final answer
    x = 74,156.68

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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.