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Finding the Fourth Proportional to 121,313.62, 167,410.53 and 67,597.49

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Solution

The fourth proportional to 121,313.62, 167,410.53 and 67,597.49 is: 93,283.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,313.62 : 167,410.53 = 67,597.49 : x
  2. Step 2: Convert to fraction form
    121,313.62/167,410.53 = 67,597.49/x
  3. Step 3: Cross multiply
    121,313.62x = 167,410.53 × 67,597.49
  4. Step 4: Simplify right side
    121,313.62x = 11,316,532,046.10
  5. Step 5: Solve for x
    x = 11,316,532,046.10/121,313.62
  6. Step 6: Final answer
    x = 93,283.28

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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.