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Finding the Fourth Proportional to 98,495.57, 147,767.65 and 28,374.27

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Solution

The fourth proportional to 98,495.57, 147,767.65 and 28,374.27 is: 42,568.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,495.57 : 147,767.65 = 28,374.27 : x
  2. Step 2: Convert to fraction form
    98,495.57/147,767.65 = 28,374.27/x
  3. Step 3: Cross multiply
    98,495.57x = 147,767.65 × 28,374.27
  4. Step 4: Simplify right side
    98,495.57x = 4,192,799,127.43
  5. Step 5: Solve for x
    x = 4,192,799,127.43/98,495.57
  6. Step 6: Final answer
    x = 42,568.41

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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.