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Finding the Fourth Proportional to 98,578.49, 147,880.01 and 38,599.21

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Solution

The fourth proportional to 98,578.49, 147,880.01 and 38,599.21 is: 57,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,578.49 : 147,880.01 = 38,599.21 : x
  2. Step 2: Convert to fraction form
    98,578.49/147,880.01 = 38,599.21/x
  3. Step 3: Cross multiply
    98,578.49x = 147,880.01 × 38,599.21
  4. Step 4: Simplify right side
    98,578.49x = 5,708,051,842.14
  5. Step 5: Solve for x
    x = 5,708,051,842.14/98,578.49
  6. Step 6: Final answer
    x = 57,903.63

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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.