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Finding the Fourth Proportional to 72,291.96, 99,783.90 and 44,048.88

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Solution

The fourth proportional to 72,291.96, 99,783.90 and 44,048.88 is: 60,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,291.96 : 99,783.90 = 44,048.88 : x
  2. Step 2: Convert to fraction form
    72,291.96/99,783.90 = 44,048.88/x
  3. Step 3: Cross multiply
    72,291.96x = 99,783.90 × 44,048.88
  4. Step 4: Simplify right side
    72,291.96x = 4,395,369,037.03
  5. Step 5: Solve for x
    x = 4,395,369,037.03/72,291.96
  6. Step 6: Final answer
    x = 60,800.25

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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.