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Finding the Fourth Proportional to 89,205.70, 133,695.15 and 36,555.70

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Solution

The fourth proportional to 89,205.70, 133,695.15 and 36,555.70 is: 54,787.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,205.70 : 133,695.15 = 36,555.70 : x
  2. Step 2: Convert to fraction form
    89,205.70/133,695.15 = 36,555.70/x
  3. Step 3: Cross multiply
    89,205.70x = 133,695.15 × 36,555.70
  4. Step 4: Simplify right side
    89,205.70x = 4,887,319,794.86
  5. Step 5: Solve for x
    x = 4,887,319,794.86/89,205.70
  6. Step 6: Final answer
    x = 54,787.08

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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.