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Finding the Fourth Proportional to 72,324.99, 99,817.95 and 42,110.82

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Solution

The fourth proportional to 72,324.99, 99,817.95 and 42,110.82 is: 58,118.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,324.99 : 99,817.95 = 42,110.82 : x
  2. Step 2: Convert to fraction form
    72,324.99/99,817.95 = 42,110.82/x
  3. Step 3: Cross multiply
    72,324.99x = 99,817.95 × 42,110.82
  4. Step 4: Simplify right side
    72,324.99x = 4,203,415,725.22
  5. Step 5: Solve for x
    x = 4,203,415,725.22/72,324.99
  6. Step 6: Final answer
    x = 58,118.44

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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.