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Finding the Fourth Proportional to 72,939.16, 100,606.08 and 44,658.84

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Solution

The fourth proportional to 72,939.16, 100,606.08 and 44,658.84 is: 61,598.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,939.16 : 100,606.08 = 44,658.84 : x
  2. Step 2: Convert to fraction form
    72,939.16/100,606.08 = 44,658.84/x
  3. Step 3: Cross multiply
    72,939.16x = 100,606.08 × 44,658.84
  4. Step 4: Simplify right side
    72,939.16x = 4,492,950,829.75
  5. Step 5: Solve for x
    x = 4,492,950,829.75/72,939.16
  6. Step 6: Final answer
    x = 61,598.61

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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.