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Finding the Fourth Proportional to 197,213.64, 295,607.28 and 78,754.80

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Solution

The fourth proportional to 197,213.64, 295,607.28 and 78,754.80 is: 118,047.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,213.64 : 295,607.28 = 78,754.80 : x
  2. Step 2: Convert to fraction form
    197,213.64/295,607.28 = 78,754.80/x
  3. Step 3: Cross multiply
    197,213.64x = 295,607.28 × 78,754.80
  4. Step 4: Simplify right side
    197,213.64x = 23,280,492,214.94
  5. Step 5: Solve for x
    x = 23,280,492,214.94/197,213.64
  6. Step 6: Final answer
    x = 118,047.07

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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.