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Finding the Fourth Proportional to 99,332.73, 137,081.70 and 54,013.77

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Solution

The fourth proportional to 99,332.73, 137,081.70 and 54,013.77 is: 74,540.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,332.73 : 137,081.70 = 54,013.77 : x
  2. Step 2: Convert to fraction form
    99,332.73/137,081.70 = 54,013.77/x
  3. Step 3: Cross multiply
    99,332.73x = 137,081.70 × 54,013.77
  4. Step 4: Simplify right side
    99,332.73x = 7,404,299,415.01
  5. Step 5: Solve for x
    x = 7,404,299,415.01/99,332.73
  6. Step 6: Final answer
    x = 74,540.38

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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.