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Finding the Fourth Proportional to 89,397.77, 133,939.03 and 47,184.85

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Solution

The fourth proportional to 89,397.77, 133,939.03 and 47,184.85 is: 70,694.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,397.77 : 133,939.03 = 47,184.85 : x
  2. Step 2: Convert to fraction form
    89,397.77/133,939.03 = 47,184.85/x
  3. Step 3: Cross multiply
    89,397.77x = 133,939.03 × 47,184.85
  4. Step 4: Simplify right side
    89,397.77x = 6,319,893,039.70
  5. Step 5: Solve for x
    x = 6,319,893,039.70/89,397.77
  6. Step 6: Final answer
    x = 70,694.08

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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.