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Finding the Fourth Proportional to 161,671.97, 223,112.87 and 93,689.07

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Solution

The fourth proportional to 161,671.97, 223,112.87 and 93,689.07 is: 129,294.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,671.97 : 223,112.87 = 93,689.07 : x
  2. Step 2: Convert to fraction form
    161,671.97/223,112.87 = 93,689.07/x
  3. Step 3: Cross multiply
    161,671.97x = 223,112.87 × 93,689.07
  4. Step 4: Simplify right side
    161,671.97x = 20,903,236,826.89
  5. Step 5: Solve for x
    x = 20,903,236,826.89/161,671.97
  6. Step 6: Final answer
    x = 129,294.13

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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.