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Finding the Fourth Proportional to 84,740.72, 127,152.79 and 59,940.14

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Solution

The fourth proportional to 84,740.72, 127,152.79 and 59,940.14 is: 89,939.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.72 : 127,152.79 = 59,940.14 : x
  2. Step 2: Convert to fraction form
    84,740.72/127,152.79 = 59,940.14/x
  3. Step 3: Cross multiply
    84,740.72x = 127,152.79 × 59,940.14
  4. Step 4: Simplify right side
    84,740.72x = 7,621,555,248.38
  5. Step 5: Solve for x
    x = 7,621,555,248.38/84,740.72
  6. Step 6: Final answer
    x = 89,939.71

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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.