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Finding the Fourth Proportional to 353,471.87, 530,127.92 and 100,746.91

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Solution

The fourth proportional to 353,471.87, 530,127.92 and 100,746.91 is: 151,097.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,471.87 : 530,127.92 = 100,746.91 : x
  2. Step 2: Convert to fraction form
    353,471.87/530,127.92 = 100,746.91/x
  3. Step 3: Cross multiply
    353,471.87x = 530,127.92 × 100,746.91
  4. Step 4: Simplify right side
    353,471.87x = 53,408,750,759.25
  5. Step 5: Solve for x
    x = 53,408,750,759.25/353,471.87
  6. Step 6: Final answer
    x = 151,097.60

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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.