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Finding the Fourth Proportional to 98,622.58, 147,919.29 and 36,278.50

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Solution

The fourth proportional to 98,622.58, 147,919.29 and 36,278.50 is: 54,412.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,622.58 : 147,919.29 = 36,278.50 : x
  2. Step 2: Convert to fraction form
    98,622.58/147,919.29 = 36,278.50/x
  3. Step 3: Cross multiply
    98,622.58x = 147,919.29 × 36,278.50
  4. Step 4: Simplify right side
    98,622.58x = 5,366,289,962.27
  5. Step 5: Solve for x
    x = 5,366,289,962.27/98,622.58
  6. Step 6: Final answer
    x = 54,412.39

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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.