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Finding the Fourth Proportional to 97,338.76, 134,329.44 and 54,889

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Solution

The fourth proportional to 97,338.76, 134,329.44 and 54,889 is: 75,747.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,338.76 : 134,329.44 = 54,889 : x
  2. Step 2: Convert to fraction form
    97,338.76/134,329.44 = 54,889/x
  3. Step 3: Cross multiply
    97,338.76x = 134,329.44 × 54,889
  4. Step 4: Simplify right side
    97,338.76x = 7,373,208,632.16
  5. Step 5: Solve for x
    x = 7,373,208,632.16/97,338.76
  6. Step 6: Final answer
    x = 75,747.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.