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Finding the Fourth Proportional to 73,946.56, 102,120.80 and 47,101.12

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Solution

The fourth proportional to 73,946.56, 102,120.80 and 47,101.12 is: 65,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,946.56 : 102,120.80 = 47,101.12 : x
  2. Step 2: Convert to fraction form
    73,946.56/102,120.80 = 47,101.12/x
  3. Step 3: Cross multiply
    73,946.56x = 102,120.80 × 47,101.12
  4. Step 4: Simplify right side
    73,946.56x = 4,810,004,055.30
  5. Step 5: Solve for x
    x = 4,810,004,055.30/73,946.56
  6. Step 6: Final answer
    x = 65,047.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.