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Finding the Fourth Proportional to 374,905.20, 562,357.80 and 125,587.20

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Solution

The fourth proportional to 374,905.20, 562,357.80 and 125,587.20 is: 188,380.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,905.20 : 562,357.80 = 125,587.20 : x
  2. Step 2: Convert to fraction form
    374,905.20/562,357.80 = 125,587.20/x
  3. Step 3: Cross multiply
    374,905.20x = 562,357.80 × 125,587.20
  4. Step 4: Simplify right side
    374,905.20x = 70,624,941,500.16
  5. Step 5: Solve for x
    x = 70,624,941,500.16/374,905.20
  6. Step 6: Final answer
    x = 188,380.80

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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.