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Finding the Fourth Proportional to 100,853.80, 151,280.70 and 93,250.60

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Solution

The fourth proportional to 100,853.80, 151,280.70 and 93,250.60 is: 139,875.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,853.80 : 151,280.70 = 93,250.60 : x
  2. Step 2: Convert to fraction form
    100,853.80/151,280.70 = 93,250.60/x
  3. Step 3: Cross multiply
    100,853.80x = 151,280.70 × 93,250.60
  4. Step 4: Simplify right side
    100,853.80x = 14,107,016,043.42
  5. Step 5: Solve for x
    x = 14,107,016,043.42/100,853.80
  6. Step 6: Final answer
    x = 139,875.90

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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.