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Finding the Fourth Proportional to 385,266.11, 577,903.05 and 172,044.86

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Solution

The fourth proportional to 385,266.11, 577,903.05 and 172,044.86 is: 258,069.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,266.11 : 577,903.05 = 172,044.86 : x
  2. Step 2: Convert to fraction form
    385,266.11/577,903.05 = 172,044.86/x
  3. Step 3: Cross multiply
    385,266.11x = 577,903.05 × 172,044.86
  4. Step 4: Simplify right side
    385,266.11x = 99,425,246,441.31
  5. Step 5: Solve for x
    x = 99,425,246,441.31/385,266.11
  6. Step 6: Final answer
    x = 258,069.02

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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.