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Finding the Fourth Proportional to 121,283.60, 167,376.51 and 67,568.58

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Solution

The fourth proportional to 121,283.60, 167,376.51 and 67,568.58 is: 93,247.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,283.60 : 167,376.51 = 67,568.58 : x
  2. Step 2: Convert to fraction form
    121,283.60/167,376.51 = 67,568.58/x
  3. Step 3: Cross multiply
    121,283.60x = 167,376.51 × 67,568.58
  4. Step 4: Simplify right side
    121,283.60x = 11,309,393,106.06
  5. Step 5: Solve for x
    x = 11,309,393,106.06/121,283.60
  6. Step 6: Final answer
    x = 93,247.51

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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.