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Finding the Fourth Proportional to 100,959.80, 151,439.70 and 93,356.60

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Solution

The fourth proportional to 100,959.80, 151,439.70 and 93,356.60 is: 140,034.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,959.80 : 151,439.70 = 93,356.60 : x
  2. Step 2: Convert to fraction form
    100,959.80/151,439.70 = 93,356.60/x
  3. Step 3: Cross multiply
    100,959.80x = 151,439.70 × 93,356.60
  4. Step 4: Simplify right side
    100,959.80x = 14,137,895,497.02
  5. Step 5: Solve for x
    x = 14,137,895,497.02/100,959.80
  6. Step 6: Final answer
    x = 140,034.90

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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.