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Finding the Fourth Proportional to 99,349.99, 137,103.91 and 54,028.41

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Solution

The fourth proportional to 99,349.99, 137,103.91 and 54,028.41 is: 74,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,349.99 : 137,103.91 = 54,028.41 : x
  2. Step 2: Convert to fraction form
    99,349.99/137,103.91 = 54,028.41/x
  3. Step 3: Cross multiply
    99,349.99x = 137,103.91 × 54,028.41
  4. Step 4: Simplify right side
    99,349.99x = 7,407,506,262.08
  5. Step 5: Solve for x
    x = 7,407,506,262.08/99,349.99
  6. Step 6: Final answer
    x = 74,559.71

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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.