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Finding the Fourth Proportional to 369,372.18, 554,023.71 and 158,970.90

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Solution

The fourth proportional to 369,372.18, 554,023.71 and 158,970.90 is: 238,441.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,372.18 : 554,023.71 = 158,970.90 : x
  2. Step 2: Convert to fraction form
    369,372.18/554,023.71 = 158,970.90/x
  3. Step 3: Cross multiply
    369,372.18x = 554,023.71 × 158,970.90
  4. Step 4: Simplify right side
    369,372.18x = 88,073,647,800.04
  5. Step 5: Solve for x
    x = 88,073,647,800.04/369,372.18
  6. Step 6: Final answer
    x = 238,441.48

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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.