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Finding the Fourth Proportional to 73,294.30, 109,931.73 and 40,051.90

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Solution

The fourth proportional to 73,294.30, 109,931.73 and 40,051.90 is: 60,072.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,294.30 : 109,931.73 = 40,051.90 : x
  2. Step 2: Convert to fraction form
    73,294.30/109,931.73 = 40,051.90/x
  3. Step 3: Cross multiply
    73,294.30x = 109,931.73 × 40,051.90
  4. Step 4: Simplify right side
    73,294.30x = 4,402,974,656.79
  5. Step 5: Solve for x
    x = 4,402,974,656.79/73,294.30
  6. Step 6: Final answer
    x = 60,072.54

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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.