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Finding the Fourth Proportional to 374,491, 561,736.50 and 111,835

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Solution

The fourth proportional to 374,491, 561,736.50 and 111,835 is: 167,752.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,491 : 561,736.50 = 111,835 : x
  2. Step 2: Convert to fraction form
    374,491/561,736.50 = 111,835/x
  3. Step 3: Cross multiply
    374,491x = 561,736.50 × 111,835
  4. Step 4: Simplify right side
    374,491x = 62,821,801,477.50
  5. Step 5: Solve for x
    x = 62,821,801,477.50/374,491
  6. Step 6: Final answer
    x = 167,752.50

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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.