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Finding the Fourth Proportional to 374,608.50, 561,913.32 and 152,992.50

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Solution

The fourth proportional to 374,608.50, 561,913.32 and 152,992.50 is: 229,488.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,608.50 : 561,913.32 = 152,992.50 : x
  2. Step 2: Convert to fraction form
    374,608.50/561,913.32 = 152,992.50/x
  3. Step 3: Cross multiply
    374,608.50x = 561,913.32 × 152,992.50
  4. Step 4: Simplify right side
    374,608.50x = 85,968,523,610.10
  5. Step 5: Solve for x
    x = 85,968,523,610.10/374,608.50
  6. Step 6: Final answer
    x = 229,488.98

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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.