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Finding the Fourth Proportional to 118,970.48, 178,502.45 and 52,363.91

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Solution

The fourth proportional to 118,970.48, 178,502.45 and 52,363.91 is: 78,566.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,970.48 : 178,502.45 = 52,363.91 : x
  2. Step 2: Convert to fraction form
    118,970.48/178,502.45 = 52,363.91/x
  3. Step 3: Cross multiply
    118,970.48x = 178,502.45 × 52,363.91
  4. Step 4: Simplify right side
    118,970.48x = 9,347,086,226.58
  5. Step 5: Solve for x
    x = 9,347,086,226.58/118,970.48
  6. Step 6: Final answer
    x = 78,566.43

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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.