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Finding the Fourth Proportional to 374,817.54, 562,071.65 and 143,971.64

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Solution

The fourth proportional to 374,817.54, 562,071.65 and 143,971.64 is: 215,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,817.54 : 562,071.65 = 143,971.64 : x
  2. Step 2: Convert to fraction form
    374,817.54/562,071.65 = 143,971.64/x
  3. Step 3: Cross multiply
    374,817.54x = 562,071.65 × 143,971.64
  4. Step 4: Simplify right side
    374,817.54x = 80,922,375,825.56
  5. Step 5: Solve for x
    x = 80,922,375,825.56/374,817.54
  6. Step 6: Final answer
    x = 215,898.05

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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.