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Finding the Fourth Proportional to 98,490.44, 147,498.92 and 56,242.61

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Solution

The fourth proportional to 98,490.44, 147,498.92 and 56,242.61 is: 84,228.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,490.44 : 147,498.92 = 56,242.61 : x
  2. Step 2: Convert to fraction form
    98,490.44/147,498.92 = 56,242.61/x
  3. Step 3: Cross multiply
    98,490.44x = 147,498.92 × 56,242.61
  4. Step 4: Simplify right side
    98,490.44x = 8,295,723,214.27
  5. Step 5: Solve for x
    x = 8,295,723,214.27/98,490.44
  6. Step 6: Final answer
    x = 84,228.72

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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.