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Finding the Fourth Proportional to 89,347.53, 123,291.11 and 53,530.89

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Solution

The fourth proportional to 89,347.53, 123,291.11 and 53,530.89 is: 73,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,347.53 : 123,291.11 = 53,530.89 : x
  2. Step 2: Convert to fraction form
    89,347.53/123,291.11 = 53,530.89/x
  3. Step 3: Cross multiply
    89,347.53x = 123,291.11 × 53,530.89
  4. Step 4: Simplify right side
    89,347.53x = 6,599,882,579.73
  5. Step 5: Solve for x
    x = 6,599,882,579.73/89,347.53
  6. Step 6: Final answer
    x = 73,867.54

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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.