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Finding the Fourth Proportional to 577,621.62, 866,374.59 and 178,154.10

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Solution

The fourth proportional to 577,621.62, 866,374.59 and 178,154.10 is: 267,213.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,621.62 : 866,374.59 = 178,154.10 : x
  2. Step 2: Convert to fraction form
    577,621.62/866,374.59 = 178,154.10/x
  3. Step 3: Cross multiply
    577,621.62x = 866,374.59 × 178,154.10
  4. Step 4: Simplify right side
    577,621.62x = 154,348,185,344.32
  5. Step 5: Solve for x
    x = 154,348,185,344.32/577,621.62
  6. Step 6: Final answer
    x = 267,213.31

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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.