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Finding the Fourth Proportional to 100,707.30, 150,878.70 and 48,000.60

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Solution

The fourth proportional to 100,707.30, 150,878.70 and 48,000.60 is: 71,914.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,707.30 : 150,878.70 = 48,000.60 : x
  2. Step 2: Convert to fraction form
    100,707.30/150,878.70 = 48,000.60/x
  3. Step 3: Cross multiply
    100,707.30x = 150,878.70 × 48,000.60
  4. Step 4: Simplify right side
    100,707.30x = 7,242,268,127.22
  5. Step 5: Solve for x
    x = 7,242,268,127.22/100,707.30
  6. Step 6: Final answer
    x = 71,914.03

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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.