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Finding the Fourth Proportional to 357,742.40, 536,613.60 and 161,134.40

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Solution

The fourth proportional to 357,742.40, 536,613.60 and 161,134.40 is: 241,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,742.40 : 536,613.60 = 161,134.40 : x
  2. Step 2: Convert to fraction form
    357,742.40/536,613.60 = 161,134.40/x
  3. Step 3: Cross multiply
    357,742.40x = 536,613.60 × 161,134.40
  4. Step 4: Simplify right side
    357,742.40x = 86,466,910,467.84
  5. Step 5: Solve for x
    x = 86,466,910,467.84/357,742.40
  6. Step 6: Final answer
    x = 241,701.60

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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.