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Finding the Fourth Proportional to 59,680.40, 89,520.60 and 56,764.40

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Solution

The fourth proportional to 59,680.40, 89,520.60 and 56,764.40 is: 85,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,680.40 : 89,520.60 = 56,764.40 : x
  2. Step 2: Convert to fraction form
    59,680.40/89,520.60 = 56,764.40/x
  3. Step 3: Cross multiply
    59,680.40x = 89,520.60 × 56,764.40
  4. Step 4: Simplify right side
    59,680.40x = 5,081,583,146.64
  5. Step 5: Solve for x
    x = 5,081,583,146.64/59,680.40
  6. Step 6: Final answer
    x = 85,146.60

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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.