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Finding the Fourth Proportional to 374,678.78, 561,574.08 and 174,584.90

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Solution

The fourth proportional to 374,678.78, 561,574.08 and 174,584.90 is: 261,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,678.78 : 561,574.08 = 174,584.90 : x
  2. Step 2: Convert to fraction form
    374,678.78/561,574.08 = 174,584.90/x
  3. Step 3: Cross multiply
    374,678.78x = 561,574.08 × 174,584.90
  4. Step 4: Simplify right side
    374,678.78x = 98,042,354,599.39
  5. Step 5: Solve for x
    x = 98,042,354,599.39/374,678.78
  6. Step 6: Final answer
    x = 261,670.42

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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.