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Finding the Fourth Proportional to 121,004.33, 166,961.51 and 70,693.61

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Solution

The fourth proportional to 121,004.33, 166,961.51 and 70,693.61 is: 97,542.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,004.33 : 166,961.51 = 70,693.61 : x
  2. Step 2: Convert to fraction form
    121,004.33/166,961.51 = 70,693.61/x
  3. Step 3: Cross multiply
    121,004.33x = 166,961.51 × 70,693.61
  4. Step 4: Simplify right side
    121,004.33x = 11,803,111,519.48
  5. Step 5: Solve for x
    x = 11,803,111,519.48/121,004.33
  6. Step 6: Final answer
    x = 97,542.89

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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.