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Finding the Fourth Proportional to 99,338.92, 137,088.42 and 54,016.84

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Solution

The fourth proportional to 99,338.92, 137,088.42 and 54,016.84 is: 74,543.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,338.92 : 137,088.42 = 54,016.84 : x
  2. Step 2: Convert to fraction form
    99,338.92/137,088.42 = 54,016.84/x
  3. Step 3: Cross multiply
    99,338.92x = 137,088.42 × 54,016.84
  4. Step 4: Simplify right side
    99,338.92x = 7,405,083,248.99
  5. Step 5: Solve for x
    x = 7,405,083,248.99/99,338.92
  6. Step 6: Final answer
    x = 74,543.63

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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.