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Finding the Fourth Proportional to 98,172.16, 147,250.01 and 38,991.94

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Solution

The fourth proportional to 98,172.16, 147,250.01 and 38,991.94 is: 58,484.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,172.16 : 147,250.01 = 38,991.94 : x
  2. Step 2: Convert to fraction form
    98,172.16/147,250.01 = 38,991.94/x
  3. Step 3: Cross multiply
    98,172.16x = 147,250.01 × 38,991.94
  4. Step 4: Simplify right side
    98,172.16x = 5,741,563,284.27
  5. Step 5: Solve for x
    x = 5,741,563,284.27/98,172.16
  6. Step 6: Final answer
    x = 58,484.64

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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.