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Finding the Fourth Proportional to 172,721.60, 259,157.64 and 60,482.44

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Solution

The fourth proportional to 172,721.60, 259,157.64 and 60,482.44 is: 90,750.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,721.60 : 259,157.64 = 60,482.44 : x
  2. Step 2: Convert to fraction form
    172,721.60/259,157.64 = 60,482.44/x
  3. Step 3: Cross multiply
    172,721.60x = 259,157.64 × 60,482.44
  4. Step 4: Simplify right side
    172,721.60x = 15,674,486,411.84
  5. Step 5: Solve for x
    x = 15,674,486,411.84/172,721.60
  6. Step 6: Final answer
    x = 90,750.01

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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.