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Finding the Fourth Proportional to 275,276.87, 379,881.46 and 152,788.01

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Solution

The fourth proportional to 275,276.87, 379,881.46 and 152,788.01 is: 210,847.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,276.87 : 379,881.46 = 152,788.01 : x
  2. Step 2: Convert to fraction form
    275,276.87/379,881.46 = 152,788.01/x
  3. Step 3: Cross multiply
    275,276.87x = 379,881.46 × 152,788.01
  4. Step 4: Simplify right side
    275,276.87x = 58,041,332,877.03
  5. Step 5: Solve for x
    x = 58,041,332,877.03/275,276.87
  6. Step 6: Final answer
    x = 210,847.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.