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Finding the Fourth Proportional to 91,809.01, 126,693.59 and 50,972.26

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Solution

The fourth proportional to 91,809.01, 126,693.59 and 50,972.26 is: 70,340.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,809.01 : 126,693.59 = 50,972.26 : x
  2. Step 2: Convert to fraction form
    91,809.01/126,693.59 = 50,972.26/x
  3. Step 3: Cross multiply
    91,809.01x = 126,693.59 × 50,972.26
  4. Step 4: Simplify right side
    91,809.01x = 6,457,858,609.81
  5. Step 5: Solve for x
    x = 6,457,858,609.81/91,809.01
  6. Step 6: Final answer
    x = 70,340.14

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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.