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Finding the Fourth Proportional to 117,307.80, 175,961.70 and 28,560.60

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Solution

The fourth proportional to 117,307.80, 175,961.70 and 28,560.60 is: 42,840.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,307.80 : 175,961.70 = 28,560.60 : x
  2. Step 2: Convert to fraction form
    117,307.80/175,961.70 = 28,560.60/x
  3. Step 3: Cross multiply
    117,307.80x = 175,961.70 × 28,560.60
  4. Step 4: Simplify right side
    117,307.80x = 5,025,571,729.02
  5. Step 5: Solve for x
    x = 5,025,571,729.02/117,307.80
  6. Step 6: Final answer
    x = 42,840.90

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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.