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Finding the Fourth Proportional to 369,451.88, 554,396.70 and 156,208.15

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Solution

The fourth proportional to 369,451.88, 554,396.70 and 156,208.15 is: 234,404.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,451.88 : 554,396.70 = 156,208.15 : x
  2. Step 2: Convert to fraction form
    369,451.88/554,396.70 = 156,208.15/x
  3. Step 3: Cross multiply
    369,451.88x = 554,396.70 × 156,208.15
  4. Step 4: Simplify right side
    369,451.88x = 86,601,281,033.40
  5. Step 5: Solve for x
    x = 86,601,281,033.40/369,451.88
  6. Step 6: Final answer
    x = 234,404.76

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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.