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Finding the Fourth Proportional to 70,869.94, 97,800.51 and 39,039.52

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Solution

The fourth proportional to 70,869.94, 97,800.51 and 39,039.52 is: 53,874.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,869.94 : 97,800.51 = 39,039.52 : x
  2. Step 2: Convert to fraction form
    70,869.94/97,800.51 = 39,039.52/x
  3. Step 3: Cross multiply
    70,869.94x = 97,800.51 × 39,039.52
  4. Step 4: Simplify right side
    70,869.94x = 3,818,085,051.43
  5. Step 5: Solve for x
    x = 3,818,085,051.43/70,869.94
  6. Step 6: Final answer
    x = 53,874.54

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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.