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Finding the Fourth Proportional to 354,665.19, 532,077.97 and 118,017.21

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Solution

The fourth proportional to 354,665.19, 532,077.97 and 118,017.21 is: 177,052.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,665.19 : 532,077.97 = 118,017.21 : x
  2. Step 2: Convert to fraction form
    354,665.19/532,077.97 = 118,017.21/x
  3. Step 3: Cross multiply
    354,665.19x = 532,077.97 × 118,017.21
  4. Step 4: Simplify right side
    354,665.19x = 62,794,357,521.86
  5. Step 5: Solve for x
    x = 62,794,357,521.86/354,665.19
  6. Step 6: Final answer
    x = 177,052.50

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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.