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Finding the Fourth Proportional to 96,809.40, 145,214.10 and 89,227.80

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Solution

The fourth proportional to 96,809.40, 145,214.10 and 89,227.80 is: 133,841.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,809.40 : 145,214.10 = 89,227.80 : x
  2. Step 2: Convert to fraction form
    96,809.40/145,214.10 = 89,227.80/x
  3. Step 3: Cross multiply
    96,809.40x = 145,214.10 × 89,227.80
  4. Step 4: Simplify right side
    96,809.40x = 12,957,134,671.98
  5. Step 5: Solve for x
    x = 12,957,134,671.98/96,809.40
  6. Step 6: Final answer
    x = 133,841.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.