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Finding the Fourth Proportional to 150,671.94, 207,913.53 and 89,407.57

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Solution

The fourth proportional to 150,671.94, 207,913.53 and 89,407.57 is: 123,374.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,671.94 : 207,913.53 = 89,407.57 : x
  2. Step 2: Convert to fraction form
    150,671.94/207,913.53 = 89,407.57/x
  3. Step 3: Cross multiply
    150,671.94x = 207,913.53 × 89,407.57
  4. Step 4: Simplify right side
    150,671.94x = 18,589,043,040.38
  5. Step 5: Solve for x
    x = 18,589,043,040.38/150,671.94
  6. Step 6: Final answer
    x = 123,374.29

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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.