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Finding the Fourth Proportional to 383,903.62, 575,966.12 and 117,703.42

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Solution

The fourth proportional to 383,903.62, 575,966.12 and 117,703.42 is: 176,589.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,903.62 : 575,966.12 = 117,703.42 : x
  2. Step 2: Convert to fraction form
    383,903.62/575,966.12 = 117,703.42/x
  3. Step 3: Cross multiply
    383,903.62x = 575,966.12 × 117,703.42
  4. Step 4: Simplify right side
    383,903.62x = 67,793,181,539.61
  5. Step 5: Solve for x
    x = 67,793,181,539.61/383,903.62
  6. Step 6: Final answer
    x = 176,589.07

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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.