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Finding the Fourth Proportional to 71,095.86, 106,551.18 and 28,926.72

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Solution

The fourth proportional to 71,095.86, 106,551.18 and 28,926.72 is: 43,352.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,095.86 : 106,551.18 = 28,926.72 : x
  2. Step 2: Convert to fraction form
    71,095.86/106,551.18 = 28,926.72/x
  3. Step 3: Cross multiply
    71,095.86x = 106,551.18 × 28,926.72
  4. Step 4: Simplify right side
    71,095.86x = 3,082,176,149.53
  5. Step 5: Solve for x
    x = 3,082,176,149.53/71,095.86
  6. Step 6: Final answer
    x = 43,352.40

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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.