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Finding the Fourth Proportional to 73,508.79, 110,233.49 and 28,506.45

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Solution

The fourth proportional to 73,508.79, 110,233.49 and 28,506.45 is: 42,748.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,508.79 : 110,233.49 = 28,506.45 : x
  2. Step 2: Convert to fraction form
    73,508.79/110,233.49 = 28,506.45/x
  3. Step 3: Cross multiply
    73,508.79x = 110,233.49 × 28,506.45
  4. Step 4: Simplify right side
    73,508.79x = 3,142,365,471.01
  5. Step 5: Solve for x
    x = 3,142,365,471.01/73,508.79
  6. Step 6: Final answer
    x = 42,748.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.