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Finding the Fourth Proportional to 74,866.87, 112,329.47 and 35,457.13

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Solution

The fourth proportional to 74,866.87, 112,329.47 and 35,457.13 is: 53,199.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,866.87 : 112,329.47 = 35,457.13 : x
  2. Step 2: Convert to fraction form
    74,866.87/112,329.47 = 35,457.13/x
  3. Step 3: Cross multiply
    74,866.87x = 112,329.47 × 35,457.13
  4. Step 4: Simplify right side
    74,866.87x = 3,982,880,620.62
  5. Step 5: Solve for x
    x = 3,982,880,620.62/74,866.87
  6. Step 6: Final answer
    x = 53,199.51

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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.