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Finding the Fourth Proportional to 383,681.08, 575,521.64 and 117,440.56

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Solution

The fourth proportional to 383,681.08, 575,521.64 and 117,440.56 is: 176,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,681.08 : 575,521.64 = 117,440.56 : x
  2. Step 2: Convert to fraction form
    383,681.08/575,521.64 = 117,440.56/x
  3. Step 3: Cross multiply
    383,681.08x = 575,521.64 × 117,440.56
  4. Step 4: Simplify right side
    383,681.08x = 67,589,583,693.72
  5. Step 5: Solve for x
    x = 67,589,583,693.72/383,681.08
  6. Step 6: Final answer
    x = 176,160.85

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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.