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Finding the Fourth Proportional to 114,929.70, 172,074.60 and 58,648.20

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Solution

The fourth proportional to 114,929.70, 172,074.60 and 58,648.20 is: 87,809.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,929.70 : 172,074.60 = 58,648.20 : x
  2. Step 2: Convert to fraction form
    114,929.70/172,074.60 = 58,648.20/x
  3. Step 3: Cross multiply
    114,929.70x = 172,074.60 × 58,648.20
  4. Step 4: Simplify right side
    114,929.70x = 10,091,865,555.72
  5. Step 5: Solve for x
    x = 10,091,865,555.72/114,929.70
  6. Step 6: Final answer
    x = 87,809.03

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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.