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Finding the Fourth Proportional to 60,803.40, 91,205.10 and 51,180.60

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Solution

The fourth proportional to 60,803.40, 91,205.10 and 51,180.60 is: 76,770.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,803.40 : 91,205.10 = 51,180.60 : x
  2. Step 2: Convert to fraction form
    60,803.40/91,205.10 = 51,180.60/x
  3. Step 3: Cross multiply
    60,803.40x = 91,205.10 × 51,180.60
  4. Step 4: Simplify right side
    60,803.40x = 4,667,931,741.06
  5. Step 5: Solve for x
    x = 4,667,931,741.06/60,803.40
  6. Step 6: Final answer
    x = 76,770.90

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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.