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Finding the Fourth Proportional to 374,616.30, 561,924.45 and 121,920.60

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Solution

The fourth proportional to 374,616.30, 561,924.45 and 121,920.60 is: 182,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,616.30 : 561,924.45 = 121,920.60 : x
  2. Step 2: Convert to fraction form
    374,616.30/561,924.45 = 121,920.60/x
  3. Step 3: Cross multiply
    374,616.30x = 561,924.45 × 121,920.60
  4. Step 4: Simplify right side
    374,616.30x = 68,510,166,098.67
  5. Step 5: Solve for x
    x = 68,510,166,098.67/374,616.30
  6. Step 6: Final answer
    x = 182,880.90

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1.5x scale

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.