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Finding the Fourth Proportional to 150,393.39, 207,542.85 and 89,966.58

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Solution

The fourth proportional to 150,393.39, 207,542.85 and 89,966.58 is: 124,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,393.39 : 207,542.85 = 89,966.58 : x
  2. Step 2: Convert to fraction form
    150,393.39/207,542.85 = 89,966.58/x
  3. Step 3: Cross multiply
    150,393.39x = 207,542.85 × 89,966.58
  4. Step 4: Simplify right side
    150,393.39x = 18,671,920,417.95
  5. Step 5: Solve for x
    x = 18,671,920,417.95/150,393.39
  6. Step 6: Final answer
    x = 124,153.86

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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.