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Finding the Fourth Proportional to 260,297.73, 390,000.45 and 174,748.35

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Solution

The fourth proportional to 260,297.73, 390,000.45 and 174,748.35 is: 261,823.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,297.73 : 390,000.45 = 174,748.35 : x
  2. Step 2: Convert to fraction form
    260,297.73/390,000.45 = 174,748.35/x
  3. Step 3: Cross multiply
    260,297.73x = 390,000.45 × 174,748.35
  4. Step 4: Simplify right side
    260,297.73x = 68,151,935,136.76
  5. Step 5: Solve for x
    x = 68,151,935,136.76/260,297.73
  6. Step 6: Final answer
    x = 261,823.01

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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.