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Finding the Fourth Proportional to 89,316.35, 134,000.84 and 35,980.88

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Solution

The fourth proportional to 89,316.35, 134,000.84 and 35,980.88 is: 53,981.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,316.35 : 134,000.84 = 35,980.88 : x
  2. Step 2: Convert to fraction form
    89,316.35/134,000.84 = 35,980.88/x
  3. Step 3: Cross multiply
    89,316.35x = 134,000.84 × 35,980.88
  4. Step 4: Simplify right side
    89,316.35x = 4,821,468,143.94
  5. Step 5: Solve for x
    x = 4,821,468,143.94/89,316.35
  6. Step 6: Final answer
    x = 53,981.92

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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.