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Finding the Fourth Proportional to 453,493.80, 680,312.70 and 154,002.60

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Solution

The fourth proportional to 453,493.80, 680,312.70 and 154,002.60 is: 231,028.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,493.80 : 680,312.70 = 154,002.60 : x
  2. Step 2: Convert to fraction form
    453,493.80/680,312.70 = 154,002.60/x
  3. Step 3: Cross multiply
    453,493.80x = 680,312.70 × 154,002.60
  4. Step 4: Simplify right side
    453,493.80x = 104,769,924,613.02
  5. Step 5: Solve for x
    x = 104,769,924,613.02/453,493.80
  6. Step 6: Final answer
    x = 231,028.35

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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.