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Finding the Fourth Proportional to 98,251.94, 147,395.74 and 56,179.46

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Solution

The fourth proportional to 98,251.94, 147,395.74 and 56,179.46 is: 84,279.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,251.94 : 147,395.74 = 56,179.46 : x
  2. Step 2: Convert to fraction form
    98,251.94/147,395.74 = 56,179.46/x
  3. Step 3: Cross multiply
    98,251.94x = 147,395.74 × 56,179.46
  4. Step 4: Simplify right side
    98,251.94x = 8,280,613,079.50
  5. Step 5: Solve for x
    x = 8,280,613,079.50/98,251.94
  6. Step 6: Final answer
    x = 84,279.39

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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.