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Finding the Fourth Proportional to 89,305.52, 133,958.28 and 36,678.08

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Solution

The fourth proportional to 89,305.52, 133,958.28 and 36,678.08 is: 55,017.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,305.52 : 133,958.28 = 36,678.08 : x
  2. Step 2: Convert to fraction form
    89,305.52/133,958.28 = 36,678.08/x
  3. Step 3: Cross multiply
    89,305.52x = 133,958.28 × 36,678.08
  4. Step 4: Simplify right side
    89,305.52x = 4,913,332,510.50
  5. Step 5: Solve for x
    x = 4,913,332,510.50/89,305.52
  6. Step 6: Final answer
    x = 55,017.12

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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.