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Finding the Fourth Proportional to 73,295.48, 109,931.85 and 28,310.38

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Solution

The fourth proportional to 73,295.48, 109,931.85 and 28,310.38 is: 42,461.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,295.48 : 109,931.85 = 28,310.38 : x
  2. Step 2: Convert to fraction form
    73,295.48/109,931.85 = 28,310.38/x
  3. Step 3: Cross multiply
    73,295.48x = 109,931.85 × 28,310.38
  4. Step 4: Simplify right side
    73,295.48x = 3,112,212,172.77
  5. Step 5: Solve for x
    x = 3,112,212,172.77/73,295.48
  6. Step 6: Final answer
    x = 42,461.17

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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.