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Finding the Fourth Proportional to 169,212.71, 233,619.71 and 108,888.18

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Solution

The fourth proportional to 169,212.71, 233,619.71 and 108,888.18 is: 150,334.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,212.71 : 233,619.71 = 108,888.18 : x
  2. Step 2: Convert to fraction form
    169,212.71/233,619.71 = 108,888.18/x
  3. Step 3: Cross multiply
    169,212.71x = 233,619.71 × 108,888.18
  4. Step 4: Simplify right side
    169,212.71x = 25,438,424,489.59
  5. Step 5: Solve for x
    x = 25,438,424,489.59/169,212.71
  6. Step 6: Final answer
    x = 150,334.01

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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.