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Finding the Fourth Proportional to 88,666.62, 122,311.53 and 56,799.60

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Solution

The fourth proportional to 88,666.62, 122,311.53 and 56,799.60 is: 78,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,666.62 : 122,311.53 = 56,799.60 : x
  2. Step 2: Convert to fraction form
    88,666.62/122,311.53 = 56,799.60/x
  3. Step 3: Cross multiply
    88,666.62x = 122,311.53 × 56,799.60
  4. Step 4: Simplify right side
    88,666.62x = 6,947,245,979.39
  5. Step 5: Solve for x
    x = 6,947,245,979.39/88,666.62
  6. Step 6: Final answer
    x = 78,352.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.