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Finding the Fourth Proportional to 121,527.23, 167,682.54 and 69,834.34

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Solution

The fourth proportional to 121,527.23, 167,682.54 and 69,834.34 is: 96,356.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,527.23 : 167,682.54 = 69,834.34 : x
  2. Step 2: Convert to fraction form
    121,527.23/167,682.54 = 69,834.34/x
  3. Step 3: Cross multiply
    121,527.23x = 167,682.54 × 69,834.34
  4. Step 4: Simplify right side
    121,527.23x = 11,709,998,645.87
  5. Step 5: Solve for x
    x = 11,709,998,645.87/121,527.23
  6. Step 6: Final answer
    x = 96,356.99

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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.