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Finding the Fourth Proportional to 173,380.76, 260,075.99 and 84,705.20

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Solution

The fourth proportional to 173,380.76, 260,075.99 and 84,705.20 is: 127,060.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,380.76 : 260,075.99 = 84,705.20 : x
  2. Step 2: Convert to fraction form
    173,380.76/260,075.99 = 84,705.20/x
  3. Step 3: Cross multiply
    173,380.76x = 260,075.99 × 84,705.20
  4. Step 4: Simplify right side
    173,380.76x = 22,029,787,659.53
  5. Step 5: Solve for x
    x = 22,029,787,659.53/173,380.76
  6. Step 6: Final answer
    x = 127,060.17

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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.