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Finding the Fourth Proportional to 358,454.22, 537,759.36 and 109,129.74

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Solution

The fourth proportional to 358,454.22, 537,759.36 and 109,129.74 is: 163,718.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,454.22 : 537,759.36 = 109,129.74 : x
  2. Step 2: Convert to fraction form
    358,454.22/537,759.36 = 109,129.74/x
  3. Step 3: Cross multiply
    358,454.22x = 537,759.36 × 109,129.74
  4. Step 4: Simplify right side
    358,454.22x = 58,685,539,139.37
  5. Step 5: Solve for x
    x = 58,685,539,139.37/358,454.22
  6. Step 6: Final answer
    x = 163,718.37

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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.