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Finding the Fourth Proportional to 172,415.40, 258,742.02 and 60,096.54

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Solution

The fourth proportional to 172,415.40, 258,742.02 and 60,096.54 is: 90,186.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,415.40 : 258,742.02 = 60,096.54 : x
  2. Step 2: Convert to fraction form
    172,415.40/258,742.02 = 60,096.54/x
  3. Step 3: Cross multiply
    172,415.40x = 258,742.02 × 60,096.54
  4. Step 4: Simplify right side
    172,415.40x = 15,549,500,154.61
  5. Step 5: Solve for x
    x = 15,549,500,154.61/172,415.40
  6. Step 6: Final answer
    x = 90,186.26

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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.