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Finding the Fourth Proportional to 121,461.89, 167,617.68 and 67,750.38

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Solution

The fourth proportional to 121,461.89, 167,617.68 and 67,750.38 is: 93,495.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,461.89 : 167,617.68 = 67,750.38 : x
  2. Step 2: Convert to fraction form
    121,461.89/167,617.68 = 67,750.38/x
  3. Step 3: Cross multiply
    121,461.89x = 167,617.68 × 67,750.38
  4. Step 4: Simplify right side
    121,461.89x = 11,356,161,514.72
  5. Step 5: Solve for x
    x = 11,356,161,514.72/121,461.89
  6. Step 6: Final answer
    x = 93,495.68

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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.