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Finding the Fourth Proportional to 374,441.70, 561,664.95 and 149,820.90

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Solution

The fourth proportional to 374,441.70, 561,664.95 and 149,820.90 is: 224,732.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,441.70 : 561,664.95 = 149,820.90 : x
  2. Step 2: Convert to fraction form
    374,441.70/561,664.95 = 149,820.90/x
  3. Step 3: Cross multiply
    374,441.70x = 561,664.95 × 149,820.90
  4. Step 4: Simplify right side
    374,441.70x = 84,149,148,307.46
  5. Step 5: Solve for x
    x = 84,149,148,307.46/374,441.70
  6. Step 6: Final answer
    x = 224,732.31

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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.