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Finding the Fourth Proportional to 92,043.60, 137,968.20 and 52,515.60

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Solution

The fourth proportional to 92,043.60, 137,968.20 and 52,515.60 is: 78,717.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,043.60 : 137,968.20 = 52,515.60 : x
  2. Step 2: Convert to fraction form
    92,043.60/137,968.20 = 52,515.60/x
  3. Step 3: Cross multiply
    92,043.60x = 137,968.20 × 52,515.60
  4. Step 4: Simplify right side
    92,043.60x = 7,245,482,803.92
  5. Step 5: Solve for x
    x = 7,245,482,803.92/92,043.60
  6. Step 6: Final answer
    x = 78,717.94

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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.