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Finding the Fourth Proportional to 374,467.20, 561,700.80 and 163,881.60

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Solution

The fourth proportional to 374,467.20, 561,700.80 and 163,881.60 is: 245,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,467.20 : 561,700.80 = 163,881.60 : x
  2. Step 2: Convert to fraction form
    374,467.20/561,700.80 = 163,881.60/x
  3. Step 3: Cross multiply
    374,467.20x = 561,700.80 × 163,881.60
  4. Step 4: Simplify right side
    374,467.20x = 92,052,425,825.28
  5. Step 5: Solve for x
    x = 92,052,425,825.28/374,467.20
  6. Step 6: Final answer
    x = 245,822.40

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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.