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Finding the Fourth Proportional to 73,160.01, 109,121.88 and 70,945.07

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Solution

The fourth proportional to 73,160.01, 109,121.88 and 70,945.07 is: 105,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,160.01 : 109,121.88 = 70,945.07 : x
  2. Step 2: Convert to fraction form
    73,160.01/109,121.88 = 70,945.07/x
  3. Step 3: Cross multiply
    73,160.01x = 109,121.88 × 70,945.07
  4. Step 4: Simplify right side
    73,160.01x = 7,741,659,135.57
  5. Step 5: Solve for x
    x = 7,741,659,135.57/73,160.01
  6. Step 6: Final answer
    x = 105,818.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.